5 Changes between 0.9.8i and 0.9.9 [xx XXX xxxx]
7 *) Removed effectively defunct crypto/store from the build.
10 *) Revamp of STACK to provide stronger type-checking. Still to come:
11 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
12 ASN1_STRING, CONF_VALUE.
15 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
16 RAM on SSL connections. This option can save about 34k per idle SSL.
19 *) Revamp of LHASH to provide stronger type-checking. Still to come:
20 STACK, TXT_DB, bsearch, qsort.
23 *) Initial support for Cryptographic Message Syntax (aka CMS) based
24 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
25 support for data, signedData, compressedData, digestedData and
26 encryptedData, envelopedData types included. Scripts to check against
27 RFC4134 examples draft and interop and consistency checks of many
28 content types and variants.
31 *) Add options to enc utility to support use of zlib compression BIO.
34 *) Extend mk1mf to support importing of options and assembly language
35 files from Configure script, currently only included in VC-WIN32.
36 The assembly language rules can now optionally generate the source
37 files from the associated perl scripts.
40 *) Implement remaining functionality needed to support GOST ciphersuites.
41 Interop testing has been performed using CryptoPro implementations.
42 [Victor B. Wagner <vitus@cryptocom.ru>]
44 *) s390x assembler pack.
47 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
51 *) Implement Opaque PRF Input TLS extension as specified in
52 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
53 official specification yet and no extension type assignment by
54 IANA exists, this extension (for now) will have to be explicitly
55 enabled when building OpenSSL by providing the extension number
56 to use. For example, specify an option
58 -DTLSEXT_TYPE_opaque_prf_input=0x9527
60 to the "config" or "Configure" script to enable the extension,
61 assuming extension number 0x9527 (which is a completely arbitrary
62 and unofficial assignment based on the MD5 hash of the Internet
63 Draft). Note that by doing so, you potentially lose
64 interoperability with other TLS implementations since these might
65 be using the same extension number for other purposes.
67 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
68 opaque PRF input value to use in the handshake. This will create
69 an interal copy of the length-'len' string at 'src', and will
70 return non-zero for success.
72 To get more control and flexibility, provide a callback function
75 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
76 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
80 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
83 Callback function 'cb' will be called in handshakes, and is
84 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
85 Argument 'arg' is for application purposes (the value as given to
86 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
87 be provided to the callback function). The callback function
88 has to return non-zero to report success: usually 1 to use opaque
89 PRF input just if possible, or 2 to enforce use of the opaque PRF
90 input. In the latter case, the library will abort the handshake
91 if opaque PRF input is not successfully negotiated.
93 Arguments 'peerinput' and 'len' given to the callback function
94 will always be NULL and 0 in the case of a client. A server will
95 see the client's opaque PRF input through these variables if
96 available (NULL and 0 otherwise). Note that if the server
97 provides an opaque PRF input, the length must be the same as the
98 length of the client's opaque PRF input.
100 Note that the callback function will only be called when creating
101 a new session (session resumption can resume whatever was
102 previously negotiated), and will not be called in SSL 2.0
103 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
104 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
105 for applications that need to enforce opaque PRF input.
109 *) Update ssl code to support digests other than SHA1+MD5 for handshake
112 [Victor B. Wagner <vitus@cryptocom.ru>]
114 *) Add RFC4507 support to OpenSSL. This includes the corrections in
115 RFC4507bis. The encrypted ticket format is an encrypted encoded
116 SSL_SESSION structure, that way new session features are automatically
119 If a client application caches session in an SSL_SESSION structure
120 support is transparent because tickets are now stored in the encoded
123 The SSL_CTX structure automatically generates keys for ticket
124 protection in servers so again support should be possible
125 with no application modification.
127 If a client or server wishes to disable RFC4507 support then the option
128 SSL_OP_NO_TICKET can be set.
130 Add a TLS extension debugging callback to allow the contents of any client
131 or server extensions to be examined.
133 This work was sponsored by Google.
136 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
137 OpenSSL should now compile cleanly on gcc 4.2
138 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
140 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
141 support including streaming MAC support: this is required for GOST
143 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
145 *) Add option -stream to use PKCS#7 streaming in smime utility. New
146 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
147 to output in BER and PEM format.
150 *) Experimental support for use of HMAC via EVP_PKEY interface. This
151 allows HMAC to be handled via the EVP_DigestSign*() interface. The
152 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
153 ENGINE support for HMAC keys which are unextractable. New -mac and
154 -macopt options to dgst utility.
157 *) New option -sigopt to dgst utility. Update dgst to use
158 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
159 alternative signing paramaters such as X9.31 or PSS in the dgst
163 *) Change ssl_cipher_apply_rule(), the internal function that does
164 the work each time a ciphersuite string requests enabling
165 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
166 removing ("!foo+bar") a class of ciphersuites: Now it maintains
167 the order of disabled ciphersuites such that those ciphersuites
168 that most recently went from enabled to disabled not only stay
169 in order with respect to each other, but also have higher priority
170 than other disabled ciphersuites the next time ciphersuites are
173 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
174 the same ciphersuites as with "HIGH" alone, but in a specific
175 order where the PSK ciphersuites come first (since they are the
176 most recently disabled ciphersuites when "HIGH" is parsed).
178 Also, change ssl_create_cipher_list() (using this new
179 funcionality) such that between otherwise identical
180 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
184 *) Change ssl_create_cipher_list() so that it automatically
185 arranges the ciphersuites in reasonable order before starting
186 to process the rule string. Thus, the definition for "DEFAULT"
187 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
188 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
189 This makes it much easier to arrive at a reasonable default order
190 in applications for which anonymous ciphers are OK (meaning
191 that you can't actually use DEFAULT).
192 [Bodo Moeller; suggested by Victor Duchovni]
194 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
195 processing) into multiple integers instead of setting
196 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
197 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
198 (These masks as well as the individual bit definitions are hidden
199 away into the non-exported interface ssl/ssl_locl.h, so this
200 change to the definition of the SSL_CIPHER structure shouldn't
201 affect applications.) This give us more bits for each of these
202 categories, so there is no longer a need to coagulate AES128 and
203 AES256 into a single algorithm bit, and to coagulate Camellia128
204 and Camellia256 into a single algorithm bit, which has led to all
207 Thus, among other things, the kludge introduced in 0.9.7m and
208 0.9.8e for masking out AES256 independently of AES128 or masking
209 out Camellia256 independently of AES256 is not needed here in 0.9.9.
211 With the change, we also introduce new ciphersuite aliases that
212 so far were missing: "AES128", "AES256", "CAMELLIA128", and
216 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
217 Use the leftmost N bytes of the signature input if the input is
218 larger than the prime q (with N being the size in bytes of q).
221 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
222 it yet and it is largely untested.
225 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
228 *) Initial incomplete changes to avoid need for function casts in OpenSSL
229 some compilers (gcc 4.2 and later) reject their use. Safestack is
230 reimplemented. Update ASN1 to avoid use of legacy functions.
233 *) Win32/64 targets are linked with Winsock2.
236 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
237 to external functions. This can be used to increase CRL handling
238 efficiency especially when CRLs are very large by (for example) storing
239 the CRL revoked certificates in a database.
242 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
243 new CRLs added to a directory can be used. New command line option
244 -verify_return_error to s_client and s_server. This causes real errors
245 to be returned by the verify callback instead of carrying on no matter
246 what. This reflects the way a "real world" verify callback would behave.
249 *) GOST engine, supporting several GOST algorithms and public key formats.
250 Kindly donated by Cryptocom.
253 *) Partial support for Issuing Distribution Point CRL extension. CRLs
254 partitioned by DP are handled but no indirect CRL or reason partitioning
255 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
256 selected via a scoring technique which handles IDP and AKID in CRLs.
259 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
260 will ultimately be used for all verify operations: this will remove the
261 X509_STORE dependency on certificate verification and allow alternative
262 lookup methods. X509_STORE based implementations of these two callbacks.
265 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
266 Modify get_crl() to find a valid (unexpired) CRL if possible.
269 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
270 this would be called X509_CRL_cmp() but that name is already used by
271 a function that just compares CRL issuer names. Cache several CRL
272 extensions in X509_CRL structure and cache CRLDP in X509.
275 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
276 this maps equivalent X509_NAME structures into a consistent structure.
277 Name comparison can then be performed rapidly using memcmp().
280 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
284 *) Allow digests to supply their own micalg string for S/MIME type using
285 the ctrl EVP_MD_CTRL_MICALG.
288 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
289 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
290 ctrl. It can then customise the structure before and/or after signing
294 *) New function OBJ_add_sigid() to allow application defined signature OIDs
295 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
296 to free up any added signature OIDs.
299 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
300 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
301 digest and cipher tables. New options added to openssl utility:
302 list-message-digest-algorithms and list-cipher-algorithms.
305 *) In addition to the numerical (unsigned long) thread ID, provide
306 for a pointer (void *) thread ID. This helps accomodate systems
307 that do not provide an unsigned long thread ID. OpenSSL assumes
308 it is in the same thread iff both the numerical and the pointer
309 thread ID agree; so applications are just required to define one
310 of them appropriately (e.g., by using a pointer to a per-thread
311 memory object malloc()ed by the application for the pointer-type
312 thread ID). Exactly analoguous to the existing functions
314 void CRYPTO_set_id_callback(unsigned long (*func)(void));
315 unsigned long (*CRYPTO_get_id_callback(void))(void);
316 unsigned long CRYPTO_thread_id(void);
318 we now have additional functions
320 void CRYPTO_set_idptr_callback(void *(*func)(void));
321 void *(*CRYPTO_get_idptr_callback(void))(void);
322 void *CRYPTO_thread_idptr(void);
324 also in <openssl/crypto.h>. The default value for
325 CRYPTO_thread_idptr() if the application has not provided its own
329 *) Change the array representation of binary polynomials: the list
330 of degrees of non-zero coefficients is now terminated with -1.
331 Previously it was terminated with 0, which was also part of the
332 value; thus, the array representation was not applicable to
333 polynomials where t^0 has coefficient zero. This change makes
334 the array representation useful in a more general context.
337 *) Various modifications and fixes to SSL/TLS cipher string
338 handling. For ECC, the code now distinguishes between fixed ECDH
339 with RSA certificates on the one hand and with ECDSA certificates
340 on the other hand, since these are separate ciphersuites. The
341 unused code for Fortezza ciphersuites has been removed.
343 For consistency with EDH, ephemeral ECDH is now called "EECDH"
344 (not "ECDHE"). For consistency with the code for DH
345 certificates, use of ECDH certificates is now considered ECDH
346 authentication, not RSA or ECDSA authentication (the latter is
347 merely the CA's signing algorithm and not actively used in the
350 The temporary ciphersuite alias "ECCdraft" is no longer
351 available, and ECC ciphersuites are no longer excluded from "ALL"
352 and "DEFAULT". The following aliases now exist for RFC 4492
353 ciphersuites, most of these by analogy with the DH case:
355 kECDHr - ECDH cert, signed with RSA
356 kECDHe - ECDH cert, signed with ECDSA
357 kECDH - ECDH cert (signed with either RSA or ECDSA)
358 kEECDH - ephemeral ECDH
359 ECDH - ECDH cert or ephemeral ECDH
365 AECDH - anonymous ECDH
366 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
370 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
371 Use correct micalg parameters depending on digest(s) in signed message.
374 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
375 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
378 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
379 an engine to register a method. Add ENGINE lookups for methods and
380 functional reference processing.
383 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
384 EVP_{Sign,Verify}* which allow an application to customise the signature
388 *) New -resign option to smime utility. This adds one or more signers
389 to an existing PKCS#7 signedData structure. Also -md option to use an
390 alternative message digest algorithm for signing.
393 *) Tidy up PKCS#7 routines and add new functions to make it easier to
394 create PKCS7 structures containing multiple signers. Update smime
395 application to support multiple signers.
398 *) New -macalg option to pkcs12 utility to allow setting of an alternative
402 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
403 Reorganize PBE internals to lookup from a static table using NIDs,
404 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
405 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
406 PRF which will be automatically used with PBES2.
409 *) Replace the algorithm specific calls to generate keys in "req" with the
413 *) Update PKCS#7 enveloped data routines to use new API. This is now
414 supported by any public key method supporting the encrypt operation. A
415 ctrl is added to allow the public key algorithm to examine or modify
416 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
420 *) Add a ctrl to asn1 method to allow a public key algorithm to express
421 a default digest type to use. In most cases this will be SHA1 but some
422 algorithms (such as GOST) need to specify an alternative digest. The
423 return value indicates how strong the prefernce is 1 means optional and
424 2 is mandatory (that is it is the only supported type). Modify
425 ASN1_item_sign() to accept a NULL digest argument to indicate it should
426 use the default md. Update openssl utilities to use the default digest
427 type for signing if it is not explicitly indicated.
430 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
431 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
432 signing method from the key type. This effectively removes the link
433 between digests and public key types.
436 *) Add an OID cross reference table and utility functions. Its purpose is to
437 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
438 rsaEncryption. This will allow some of the algorithm specific hackery
439 needed to use the correct OID to be removed.
442 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
443 structures for PKCS7_sign(). They are now set up by the relevant public
447 *) Add provisional EC pkey method with support for ECDSA and ECDH.
450 *) Add support for key derivation (agreement) in the API, DH method and
454 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
455 public and private key formats. As a side effect these add additional
456 command line functionality not previously available: DSA signatures can be
457 generated and verified using pkeyutl and DH key support and generation in
462 [Oliver Tappe <zooey@hirschkaefer.de>]
464 *) New make target "install_html_docs" installs HTML renditions of the
466 [Oliver Tappe <zooey@hirschkaefer.de>]
468 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
469 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
470 support key and parameter generation and add initial key generation
471 functionality for RSA.
474 *) Add functions for main EVP_PKEY_method operations. The undocumented
475 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
476 EVP_PKEY_{encrypt,decrypt}_old.
479 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
480 key API, doesn't do much yet.
483 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
484 public key algorithms. New option to openssl utility:
485 "list-public-key-algorithms" to print out info.
488 *) Implement the Supported Elliptic Curves Extension for
489 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
492 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
493 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
496 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
497 utilities such as rsa, dsa, dsaparam etc except they process any key
501 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
502 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
503 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
507 *) Initial support for pluggable public key ASN1.
508 De-spaghettify the public key ASN1 handling. Move public and private
509 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
510 algorithm specific handling to a single module within the relevant
511 algorithm directory. Add functions to allow (near) opaque processing
512 of public and private key structures.
515 *) Implement the Supported Point Formats Extension for
516 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
519 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
520 for the psk identity [hint] and the psk callback functions to the
521 SSL_SESSION, SSL and SSL_CTX structure.
524 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
528 SSL_CTX_use_psk_identity_hint
529 SSL_get_psk_identity_hint
531 SSL_use_psk_identity_hint
533 [Mika Kousa and Pasi Eronen of Nokia Corporation]
535 *) Add RFC 3161 compliant time stamp request creation, response generation
536 and response verification functionality.
537 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
539 *) Add initial support for TLS extensions, specifically for the server_name
540 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
541 have new members for a host name. The SSL data structure has an
542 additional member SSL_CTX *initial_ctx so that new sessions can be
543 stored in that context to allow for session resumption, even after the
544 SSL has been switched to a new SSL_CTX in reaction to a client's
545 server_name extension.
547 New functions (subject to change):
550 SSL_get_servername_type()
553 New CTRL codes and macros (subject to change):
555 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
556 - SSL_CTX_set_tlsext_servername_callback()
557 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
558 - SSL_CTX_set_tlsext_servername_arg()
559 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
561 openssl s_client has a new '-servername ...' option.
563 openssl s_server has new options '-servername_host ...', '-cert2 ...',
564 '-key2 ...', '-servername_fatal' (subject to change). This allows
565 testing the HostName extension for a specific single host name ('-cert'
566 and '-key' remain fallbacks for handshakes without HostName
567 negotiation). If the unrecogninzed_name alert has to be sent, this by
568 default is a warning; it becomes fatal with the '-servername_fatal'
571 [Peter Sylvester, Remy Allais, Christophe Renou]
573 *) Whirlpool hash implementation is added.
576 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
577 bn(64,32). Because of instruction set limitations it doesn't have
578 any negative impact on performance. This was done mostly in order
579 to make it possible to share assembler modules, such as bn_mul_mont
580 implementations, between 32- and 64-bit builds without hassle.
583 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
584 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
588 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
589 dedicated Montgomery multiplication procedure, is introduced.
590 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
591 "64-bit" performance on certain 32-bit targets.
594 *) New option SSL_OP_NO_COMP to disable use of compression selectively
595 in SSL structures. New SSL ctrl to set maximum send fragment size.
596 Save memory by seeting the I/O buffer sizes dynamically instead of
597 using the maximum available value.
600 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
601 in addition to the text details.
604 *) Very, very preliminary EXPERIMENTAL support for printing of general
605 ASN1 structures. This currently produces rather ugly output and doesn't
606 handle several customised structures at all.
609 *) Integrated support for PVK file format and some related formats such
610 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
611 these in the 'rsa' and 'dsa' utilities.
614 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
617 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
618 place for the (very old) "NETSCAPE" format certificates which are now
619 handled using new ASN1 code equivalents.
622 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
623 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
624 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
627 *) Modify CRL distribution points extension code to print out previously
628 unsupported fields. Enhance extension setting code to allow setting of
632 *) Add print and set support for Issuing Distribution Point CRL extension.
635 *) Change 'Configure' script to enable Camellia by default.
638 Changes between 0.9.8h and 0.9.8i [xx XXX xxxx]
640 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
643 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
646 *) Expand ENGINE to support engine supplied SSL client certificate functions.
648 This work was sponsored by Logica.
651 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
652 keystores. Support for SSL/TLS client authentication too.
653 Not compiled unless enable-capieng specified to Configure.
655 This work was sponsored by Logica.
658 Changes between 0.9.8g and 0.9.8h [28 May 2008]
660 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
661 handshake which could lead to a cilent crash as found using the
662 Codenomicon TLS test suite (CVE-2008-1672)
663 [Steve Henson, Mark Cox]
665 *) Fix double free in TLS server name extensions which could lead to
666 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
669 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
671 Clear the error queue to ensure that error entries left from
672 older function calls do not interfere with the correct operation.
673 [Lutz Jaenicke, Erik de Castro Lopo]
675 *) Remove root CA certificates of commercial CAs:
677 The OpenSSL project does not recommend any specific CA and does not
678 have any policy with respect to including or excluding any CA.
679 Therefore it does not make any sense to ship an arbitrary selection
680 of root CA certificates with the OpenSSL software.
683 *) RSA OAEP patches to fix two separate invalid memory reads.
684 The first one involves inputs when 'lzero' is greater than
685 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
686 before the beginning of from). The second one involves inputs where
687 the 'db' section contains nothing but zeroes (there is a one-byte
688 invalid read after the end of 'db').
689 [Ivan Nestlerode <inestlerode@us.ibm.com>]
691 *) Add TLS session ticket callback. This allows an application to set
692 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
693 values. This is useful for key rollover for example where several key
694 sets may exist with different names.
697 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
698 This was broken until now in 0.9.8 releases, such that the only way
699 a registered ENGINE could be used (assuming it initialises
700 successfully on the host) was to explicitly set it as the default
701 for the relevant algorithms. This is in contradiction with 0.9.7
702 behaviour and the documentation. With this fix, when an ENGINE is
703 registered into a given algorithm's table of implementations, the
704 'uptodate' flag is reset so that auto-discovery will be used next
705 time a new context for that algorithm attempts to select an
707 [Ian Lister (tweaked by Geoff Thorpe)]
709 *) Update the GMP engine glue to do direct copies between BIGNUM and
710 mpz_t when openssl and GMP use the same limb size. Otherwise the
711 existing "conversion via a text string export" trick is still used.
712 [Paul Sheer <paulsheer@gmail.com>, Geoff Thorpe]
714 *) Zlib compression BIO. This is a filter BIO which compressed and
715 uncompresses any data passed through it.
718 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
719 RFC3394 compatible AES key wrapping.
722 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
723 sets string data without copying. X509_ALGOR_set0() and
724 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
725 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
726 from an X509_ATTRIBUTE structure optionally checking it occurs only
727 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
731 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
732 to get the expected BN_FLG_CONSTTIME behavior.
733 [Bodo Moeller (Google)]
737 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
738 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
739 - added some more tests to do_tests.pl
740 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
741 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
742 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
743 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
744 - various changes to netware.pl to enable gcc-cross builds on Win32
746 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
747 - various changes to fix missing prototype warnings
748 - fixed x86nasm.pl to create correct asm files for NASM COFF output
749 - added AES, WHIRLPOOL and CPUID assembler code to build files
750 - added missing AES assembler make rules to mk1mf.pl
751 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
752 [Guenter Knauf <eflash@gmx.net>]
754 *) Implement certificate status request TLS extension defined in RFC3546.
755 A client can set the appropriate parameters and receive the encoded
756 OCSP response via a callback. A server can query the supplied parameters
757 and set the encoded OCSP response in the callback. Add simplified examples
758 to s_client and s_server.
761 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
764 + Binary incompatibility of ssl_ctx_st structure
765 + DTLS interoperation with non-compliant servers
766 + Don't call get_session_cb() without proposed session
767 + Fix ia64 assembler code
768 [Andy Polyakov, Steve Henson]
770 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
772 *) DTLS Handshake overhaul. There were longstanding issues with
773 OpenSSL DTLS implementation, which were making it impossible for
774 RFC 4347 compliant client to communicate with OpenSSL server.
775 Unfortunately just fixing these incompatibilities would "cut off"
776 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
777 server keeps tolerating non RFC compliant syntax. The opposite is
778 not true, 0.9.8f client can not communicate with earlier server.
779 This update even addresses CVE-2007-4995.
782 *) Changes to avoid need for function casts in OpenSSL: some compilers
783 (gcc 4.2 and later) reject their use.
784 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
787 *) Add RFC4507 support to OpenSSL. This includes the corrections in
788 RFC4507bis. The encrypted ticket format is an encrypted encoded
789 SSL_SESSION structure, that way new session features are automatically
792 If a client application caches session in an SSL_SESSION structure
793 support is transparent because tickets are now stored in the encoded
796 The SSL_CTX structure automatically generates keys for ticket
797 protection in servers so again support should be possible
798 with no application modification.
800 If a client or server wishes to disable RFC4507 support then the option
801 SSL_OP_NO_TICKET can be set.
803 Add a TLS extension debugging callback to allow the contents of any client
804 or server extensions to be examined.
806 This work was sponsored by Google.
809 *) Add initial support for TLS extensions, specifically for the server_name
810 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
811 have new members for a host name. The SSL data structure has an
812 additional member SSL_CTX *initial_ctx so that new sessions can be
813 stored in that context to allow for session resumption, even after the
814 SSL has been switched to a new SSL_CTX in reaction to a client's
815 server_name extension.
817 New functions (subject to change):
820 SSL_get_servername_type()
823 New CTRL codes and macros (subject to change):
825 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
826 - SSL_CTX_set_tlsext_servername_callback()
827 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
828 - SSL_CTX_set_tlsext_servername_arg()
829 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
831 openssl s_client has a new '-servername ...' option.
833 openssl s_server has new options '-servername_host ...', '-cert2 ...',
834 '-key2 ...', '-servername_fatal' (subject to change). This allows
835 testing the HostName extension for a specific single host name ('-cert'
836 and '-key' remain fallbacks for handshakes without HostName
837 negotiation). If the unrecogninzed_name alert has to be sent, this by
838 default is a warning; it becomes fatal with the '-servername_fatal'
841 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
843 *) Add AES and SSE2 assembly language support to VC++ build.
846 *) Mitigate attack on final subtraction in Montgomery reduction.
849 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
850 (which previously caused an internal error).
853 *) Squeeze another 10% out of IGE mode when in != out.
856 *) AES IGE mode speedup.
857 [Dean Gaudet (Google)]
859 *) Add the Korean symmetric 128-bit cipher SEED (see
860 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
861 add SEED ciphersuites from RFC 4162:
863 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
864 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
865 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
866 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
868 To minimize changes between patchlevels in the OpenSSL 0.9.8
869 series, SEED remains excluded from compilation unless OpenSSL
870 is configured with 'enable-seed'.
873 *) Mitigate branch prediction attacks, which can be practical if a
874 single processor is shared, allowing a spy process to extract
875 information. For detailed background information, see
876 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
877 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
878 and Necessary Software Countermeasures"). The core of the change
879 are new versions BN_div_no_branch() and
880 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
881 respectively, which are slower, but avoid the security-relevant
882 conditional branches. These are automatically called by BN_div()
883 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
884 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
885 remove a conditional branch.
887 BN_FLG_CONSTTIME is the new name for the previous
888 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
889 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
890 in the exponent causes BN_mod_exp_mont() to use the alternative
891 implementation in BN_mod_exp_mont_consttime().) The old name
892 remains as a deprecated alias.
894 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
895 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
896 constant-time implementations for more than just exponentiation.
897 Here too the old name is kept as a deprecated alias.
899 BN_BLINDING_new() will now use BN_dup() for the modulus so that
900 the BN_BLINDING structure gets an independent copy of the
901 modulus. This means that the previous "BIGNUM *m" argument to
902 BN_BLINDING_new() and to BN_BLINDING_create_param() now
903 essentially becomes "const BIGNUM *m", although we can't actually
904 change this in the header file before 0.9.9. It allows
905 RSA_setup_blinding() to use BN_with_flags() on the modulus to
906 enable BN_FLG_CONSTTIME.
908 [Matthew D Wood (Intel Corp)]
910 *) In the SSL/TLS server implementation, be strict about session ID
911 context matching (which matters if an application uses a single
912 external cache for different purposes). Previously,
913 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
914 set. This did ensure strict client verification, but meant that,
915 with applications using a single external cache for quite
916 different requirements, clients could circumvent ciphersuite
917 restrictions for a given session ID context by starting a session
918 in a different context.
921 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
922 a ciphersuite string such as "DEFAULT:RSA" cannot enable
923 authentication-only ciphersuites.
926 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
928 *) Since AES128 and AES256 (and similarly Camellia128 and
929 Camellia256) share a single mask bit in the logic of
930 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
931 kludge to work properly if AES128 is available and AES256 isn't
932 (or if Camellia128 is available and Camellia256 isn't).
935 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
936 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
937 When a point or a seed is encoded in a BIT STRING, we need to
938 prevent the removal of trailing zero bits to get the proper DER
939 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
940 of a NamedBitList, for which trailing 0 bits need to be removed.)
943 *) Have SSL/TLS server implementation tolerate "mismatched" record
944 protocol version while receiving ClientHello even if the
945 ClientHello is fragmented. (The server can't insist on the
946 particular protocol version it has chosen before the ServerHello
947 message has informed the client about his choice.)
950 *) Add RFC 3779 support.
951 [Rob Austein for ARIN, Ben Laurie]
953 *) Load error codes if they are not already present instead of using a
954 static variable. This allows them to be cleanly unloaded and reloaded.
955 Improve header file function name parsing.
958 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
959 or CAPABILITY handshake as required by RFCs.
962 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
964 *) Introduce limits to prevent malicious keys being able to
965 cause a denial of service. (CVE-2006-2940)
966 [Steve Henson, Bodo Moeller]
968 *) Fix ASN.1 parsing of certain invalid structures that can result
969 in a denial of service. (CVE-2006-2937) [Steve Henson]
971 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
972 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
974 *) Fix SSL client code which could crash if connecting to a
975 malicious SSLv2 server. (CVE-2006-4343)
976 [Tavis Ormandy and Will Drewry, Google Security Team]
978 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
979 match only those. Before that, "AES256-SHA" would be interpreted
980 as a pattern and match "AES128-SHA" too (since AES128-SHA got
981 the same strength classification in 0.9.7h) as we currently only
982 have a single AES bit in the ciphersuite description bitmap.
983 That change, however, also applied to ciphersuite strings such as
984 "RC4-MD5" that intentionally matched multiple ciphersuites --
985 namely, SSL 2.0 ciphersuites in addition to the more common ones
986 from SSL 3.0/TLS 1.0.
988 So we change the selection algorithm again: Naming an explicit
989 ciphersuite selects this one ciphersuite, and any other similar
990 ciphersuite (same bitmap) from *other* protocol versions.
991 Thus, "RC4-MD5" again will properly select both the SSL 2.0
992 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
994 Since SSL 2.0 does not have any ciphersuites for which the
995 128/256 bit distinction would be relevant, this works for now.
996 The proper fix will be to use different bits for AES128 and
997 AES256, which would have avoided the problems from the beginning;
998 however, bits are scarce, so we can only do this in a new release
999 (not just a patchlevel) when we can change the SSL_CIPHER
1000 definition to split the single 'unsigned long mask' bitmap into
1001 multiple values to extend the available space.
1005 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1007 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1008 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1010 *) Add AES IGE and biIGE modes.
1013 *) Change the Unix randomness entropy gathering to use poll() when
1014 possible instead of select(), since the latter has some
1015 undesirable limitations.
1016 [Darryl Miles via Richard Levitte and Bodo Moeller]
1018 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1019 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1020 cannot be implicitly activated as part of, e.g., the "AES" alias.
1021 However, please upgrade to OpenSSL 0.9.9[-dev] for
1022 non-experimental use of the ECC ciphersuites to get TLS extension
1023 support, which is required for curve and point format negotiation
1024 to avoid potential handshake problems.
1027 *) Disable rogue ciphersuites:
1029 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1030 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1031 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1033 The latter two were purportedly from
1034 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1037 Also deactivate the remaining ciphersuites from
1038 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1039 unofficial, and the ID has long expired.
1042 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1043 dual-core machines) and other potential thread-safety issues.
1046 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1047 versions), which is now available for royalty-free use
1048 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1049 Also, add Camellia TLS ciphersuites from RFC 4132.
1051 To minimize changes between patchlevels in the OpenSSL 0.9.8
1052 series, Camellia remains excluded from compilation unless OpenSSL
1053 is configured with 'enable-camellia'.
1056 *) Disable the padding bug check when compression is in use. The padding
1057 bug check assumes the first packet is of even length, this is not
1058 necessarily true if compresssion is enabled and can result in false
1059 positives causing handshake failure. The actual bug test is ancient
1060 code so it is hoped that implementations will either have fixed it by
1061 now or any which still have the bug do not support compression.
1064 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1066 *) When applying a cipher rule check to see if string match is an explicit
1067 cipher suite and only match that one cipher suite if it is.
1070 *) Link in manifests for VC++ if needed.
1071 [Austin Ziegler <halostatue@gmail.com>]
1073 *) Update support for ECC-based TLS ciphersuites according to
1074 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1075 TLS extensions, which are supported starting with the 0.9.9
1076 branch, not in the OpenSSL 0.9.8 branch).
1079 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1080 opaque EVP_CIPHER_CTX handling.
1083 *) Fixes and enhancements to zlib compression code. We now only use
1084 "zlib1.dll" and use the default __cdecl calling convention on Win32
1085 to conform with the standards mentioned here:
1086 http://www.zlib.net/DLL_FAQ.txt
1087 Static zlib linking now works on Windows and the new --with-zlib-include
1088 --with-zlib-lib options to Configure can be used to supply the location
1089 of the headers and library. Gracefully handle case where zlib library
1093 *) Several fixes and enhancements to the OID generation code. The old code
1094 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1095 handle numbers larger than ULONG_MAX, truncated printing and had a
1096 non standard OBJ_obj2txt() behaviour.
1099 *) Add support for building of engines under engine/ as shared libraries
1100 under VC++ build system.
1103 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1104 Hopefully, we will not see any false combination of paths any more.
1107 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1109 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1110 (part of SSL_OP_ALL). This option used to disable the
1111 countermeasure against man-in-the-middle protocol-version
1112 rollback in the SSL 2.0 server implementation, which is a bad
1113 idea. (CVE-2005-2969)
1115 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1116 for Information Security, National Institute of Advanced Industrial
1117 Science and Technology [AIST], Japan)]
1119 *) Add two function to clear and return the verify parameter flags.
1122 *) Keep cipherlists sorted in the source instead of sorting them at
1123 runtime, thus removing the need for a lock.
1126 *) Avoid some small subgroup attacks in Diffie-Hellman.
1127 [Nick Mathewson and Ben Laurie]
1129 *) Add functions for well-known primes.
1132 *) Extended Windows CE support.
1133 [Satoshi Nakamura and Andy Polyakov]
1135 *) Initialize SSL_METHOD structures at compile time instead of during
1136 runtime, thus removing the need for a lock.
1139 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1140 attempting to decrypt each encrypted key in turn. Add support to
1144 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1146 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1149 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1152 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1153 key into the same file any more.
1156 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1159 *) Add -utf8 command line and config file option to 'ca'.
1160 [Stefan <stf@udoma.org]
1162 *) Removed the macro des_crypt(), as it seems to conflict with some
1163 libraries. Use DES_crypt().
1166 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1167 involves renaming the source and generated shared-libs for
1168 both. The engines will accept the corrected or legacy ids
1169 ('ncipher' and '4758_cca' respectively) when binding. NB,
1170 this only applies when building 'shared'.
1171 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1173 *) Add attribute functions to EVP_PKEY structure. Modify
1174 PKCS12_create() to recognize a CSP name attribute and
1175 use it. Make -CSP option work again in pkcs12 utility.
1178 *) Add new functionality to the bn blinding code:
1179 - automatic re-creation of the BN_BLINDING parameters after
1180 a fixed number of uses (currently 32)
1181 - add new function for parameter creation
1182 - introduce flags to control the update behaviour of the
1183 BN_BLINDING parameters
1184 - hide BN_BLINDING structure
1185 Add a second BN_BLINDING slot to the RSA structure to improve
1186 performance when a single RSA object is shared among several
1190 *) Add support for DTLS.
1191 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1193 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1194 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1197 *) Remove buggy and incompletet DH cert support from
1198 ssl/ssl_rsa.c and ssl/s3_both.c
1201 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1202 the apps/openssl applications.
1205 *) Compile clean with "-Wall -Wmissing-prototypes
1206 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1207 DEBUG_SAFESTACK must also be set.
1210 *) Change ./Configure so that certain algorithms can be disabled by default.
1211 The new counterpiece to "no-xxx" is "enable-xxx".
1213 The patented RC5 and MDC2 algorithms will now be disabled unless
1214 "enable-rc5" and "enable-mdc2", respectively, are specified.
1216 (IDEA remains enabled despite being patented. This is because IDEA
1217 is frequently required for interoperability, and there is no license
1218 fee for non-commercial use. As before, "no-idea" can be used to
1219 avoid this algorithm.)
1223 *) Add processing of proxy certificates (see RFC 3820). This work was
1224 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1225 EGEE (Enabling Grids for E-science in Europe).
1228 *) RC4 performance overhaul on modern architectures/implementations, such
1229 as Intel P4, IA-64 and AMD64.
1232 *) New utility extract-section.pl. This can be used specify an alternative
1233 section number in a pod file instead of having to treat each file as
1234 a separate case in Makefile. This can be done by adding two lines to the
1237 =for comment openssl_section:XXX
1239 The blank line is mandatory.
1243 *) New arguments -certform, -keyform and -pass for s_client and s_server
1244 to allow alternative format key and certificate files and passphrase
1248 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1249 update associated structures and add various utility functions.
1251 Add new policy related verify parameters, include policy checking in
1252 standard verify code. Enhance 'smime' application with extra parameters
1253 to support policy checking and print out.
1256 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1257 Nehemiah processors. These extensions support AES encryption in hardware
1258 as well as RNG (though RNG support is currently disabled).
1259 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1261 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1264 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1265 [Andy Polyakov and a number of other people]
1267 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1268 implementation contributed by IBM.
1269 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1271 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1272 exponent rather than 'unsigned long'. There is a corresponding change to
1273 the new 'rsa_keygen' element of the RSA_METHOD structure.
1274 [Jelte Jansen, Geoff Thorpe]
1276 *) Functionality for creating the initial serial number file is now
1277 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1279 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1280 number file to 1, which is bound to cause problems. To avoid
1281 the problems while respecting compatibility between different 0.9.7
1282 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1283 CA.pl for serial number initialization. With the new release 0.9.8,
1284 we can fix the problem directly in the 'ca' utility.)
1287 *) Reduced header interdepencies by declaring more opaque objects in
1288 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1289 give fewer recursive includes, which could break lazy source code - so
1290 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1291 developers should define this symbol when building and using openssl to
1292 ensure they track the recommended behaviour, interfaces, [etc], but
1293 backwards-compatible behaviour prevails when this isn't defined.
1296 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1299 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1300 This will generate a random key of the appropriate length based on the
1301 cipher context. The EVP_CIPHER can provide its own random key generation
1302 routine to support keys of a specific form. This is used in the des and
1303 3des routines to generate a key of the correct parity. Update S/MIME
1304 code to use new functions and hence generate correct parity DES keys.
1305 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1306 valid (weak or incorrect parity).
1309 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1310 as looking them up. This is useful when the verified structure may contain
1311 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1312 present unless the new PKCS7_NO_CRL flag is asserted.
1315 *) Extend ASN1 oid configuration module. It now additionally accepts the
1318 shortName = some long name, 1.2.3.4
1321 *) Reimplemented the BN_CTX implementation. There is now no more static
1322 limitation on the number of variables it can handle nor the depth of the
1323 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1324 information can now expand as required, and rather than having a single
1325 static array of bignums, BN_CTX now uses a linked-list of such arrays
1326 allowing it to expand on demand whilst maintaining the usefulness of
1327 BN_CTX's "bundling".
1330 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1331 to allow all RSA operations to function using a single BN_CTX.
1334 *) Preliminary support for certificate policy evaluation and checking. This
1335 is initially intended to pass the tests outlined in "Conformance Testing
1336 of Relying Party Client Certificate Path Processing Logic" v1.07.
1339 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1340 remained unused and not that useful. A variety of other little bignum
1341 tweaks and fixes have also been made continuing on from the audit (see
1345 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1346 associated ASN1, EVP and SSL functions and old ASN1 macros.
1349 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1350 and this should never fail. So the return value from the use of
1351 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1352 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1355 *) BN_CTX_get() should return zero-valued bignums, providing the same
1356 initialised value as BN_new().
1357 [Geoff Thorpe, suggested by Ulf Möller]
1359 *) Support for inhibitAnyPolicy certificate extension.
1362 *) An audit of the BIGNUM code is underway, for which debugging code is
1363 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1364 is considered valid when processing BIGNUMs, and causes execution to
1365 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1366 further steps are taken to deliberately pollute unused data in BIGNUM
1367 structures to try and expose faulty code further on. For now, openssl will
1368 (in its default mode of operation) continue to tolerate the inconsistent
1369 forms that it has tolerated in the past, but authors and packagers should
1370 consider trying openssl and their own applications when compiled with
1371 these debugging symbols defined. It will help highlight potential bugs in
1372 their own code, and will improve the test coverage for OpenSSL itself. At
1373 some point, these tighter rules will become openssl's default to improve
1374 maintainability, though the assert()s and other overheads will remain only
1375 in debugging configurations. See bn.h for more details.
1376 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1378 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1379 that can only be obtained through BN_CTX_new() (which implicitly
1380 initialises it). The presence of this function only made it possible
1381 to overwrite an existing structure (and cause memory leaks).
1384 *) Because of the callback-based approach for implementing LHASH as a
1385 template type, lh_insert() adds opaque objects to hash-tables and
1386 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1387 to clean up those corresponding objects before destroying the hash table
1388 (and losing the object pointers). So some over-zealous constifications in
1389 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1390 objects as "const" and the lh_doall[_arg] callback wrappers are not
1391 prototyped to have "const" restrictions on the object pointers they are
1392 given (and so aren't required to cast them away any more).
1395 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1396 (speed) prefers to use its own implementation. The two implementations
1397 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1398 its object type properly exposed (MS_TM) instead of casting to/from "char
1399 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1400 aren't necessarily the greatest nomenclatures - but this is what was used
1401 internally to the implementation so I've used that for now.
1404 *) Ensure that deprecated functions do not get compiled when
1405 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1406 the self-tests were still using deprecated key-generation functions so
1407 these have been updated also.
1410 *) Reorganise PKCS#7 code to separate the digest location functionality
1411 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1412 New function PKCS7_set_digest() to set the digest type for PKCS#7
1413 digestedData type. Add additional code to correctly generate the
1414 digestedData type and add support for this type in PKCS7 initialization
1418 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1419 structure of type "other".
1422 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1423 sure the loop does correctly stop and breaking ("division by zero")
1424 modulus operations are not performed. The (pre-generated) prime
1425 table crypto/bn/bn_prime.h was already correct, but it could not be
1426 re-generated on some platforms because of the "division by zero"
1427 situation in the script.
1428 [Ralf S. Engelschall]
1430 *) Update support for ECC-based TLS ciphersuites according to
1431 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1432 SHA-1 now is only used for "small" curves (where the
1433 representation of a field element takes up to 24 bytes); for
1434 larger curves, the field element resulting from ECDH is directly
1435 used as premaster secret.
1436 [Douglas Stebila (Sun Microsystems Laboratories)]
1438 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1439 curve secp160r1 to the tests.
1440 [Douglas Stebila (Sun Microsystems Laboratories)]
1442 *) Add the possibility to load symbols globally with DSO.
1443 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1445 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1446 control of the error stack.
1449 *) Add support for STORE in ENGINE.
1452 *) Add the STORE type. The intention is to provide a common interface
1453 to certificate and key stores, be they simple file-based stores, or
1454 HSM-type store, or LDAP stores, or...
1455 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1458 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1459 pass a list of arguments to any function as well as provide a way
1460 for a function to pass data back to the caller.
1463 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1464 works like BUF_strdup() but can be used to duplicate a portion of
1465 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1469 *) Add the function sk_find_ex() which works like sk_find(), but will
1470 return an index to an element even if an exact match couldn't be
1471 found. The index is guaranteed to point at the element where the
1472 searched-for key would be inserted to preserve sorting order.
1475 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1476 takes an extra flags argument for optional functionality. Currently,
1477 the following flags are defined:
1479 OBJ_BSEARCH_VALUE_ON_NOMATCH
1480 This one gets OBJ_bsearch_ex() to return a pointer to the first
1481 element where the comparing function returns a negative or zero
1484 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1485 This one gets OBJ_bsearch_ex() to return a pointer to the first
1486 element where the comparing function returns zero. This is useful
1487 if there are more than one element where the comparing function
1491 *) Make it possible to create self-signed certificates with 'openssl ca'
1492 in such a way that the self-signed certificate becomes part of the
1493 CA database and uses the same mechanisms for serial number generation
1494 as all other certificate signing. The new flag '-selfsign' enables
1495 this functionality. Adapt CA.sh and CA.pl.in.
1498 *) Add functionality to check the public key of a certificate request
1499 against a given private. This is useful to check that a certificate
1500 request can be signed by that key (self-signing).
1503 *) Make it possible to have multiple active certificates with the same
1504 subject in the CA index file. This is done only if the keyword
1505 'unique_subject' is set to 'no' in the main CA section (default
1506 if 'CA_default') of the configuration file. The value is saved
1507 with the database itself in a separate index attribute file,
1508 named like the index file with '.attr' appended to the name.
1511 *) Generate muti valued AVAs using '+' notation in config files for
1515 *) Support for nameConstraints certificate extension.
1518 *) Support for policyConstraints certificate extension.
1521 *) Support for policyMappings certificate extension.
1524 *) Make sure the default DSA_METHOD implementation only uses its
1525 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1526 and change its own handlers to be NULL so as to remove unnecessary
1527 indirection. This lets alternative implementations fallback to the
1528 default implementation more easily.
1531 *) Support for directoryName in GeneralName related extensions
1535 *) Make it possible to link applications using Makefile.shared.
1536 Make that possible even when linking against static libraries!
1539 *) Support for single pass processing for S/MIME signing. This now
1540 means that S/MIME signing can be done from a pipe, in addition
1541 cleartext signing (multipart/signed type) is effectively streaming
1542 and the signed data does not need to be all held in memory.
1544 This is done with a new flag PKCS7_STREAM. When this flag is set
1545 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1546 is done after the data is output (and digests calculated) in
1547 SMIME_write_PKCS7().
1550 *) Add full support for -rpath/-R, both in shared libraries and
1551 applications, at least on the platforms where it's known how
1555 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1556 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1557 will now compute a table of multiples of the generator that
1558 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1559 faster (notably in the case of a single point multiplication,
1560 scalar * generator).
1561 [Nils Larsch, Bodo Moeller]
1563 *) IPv6 support for certificate extensions. The various extensions
1564 which use the IP:a.b.c.d can now take IPv6 addresses using the
1565 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1569 *) Added an ENGINE that implements RSA by performing private key
1570 exponentiations with the GMP library. The conversions to and from
1571 GMP's mpz_t format aren't optimised nor are any montgomery forms
1572 cached, and on x86 it appears OpenSSL's own performance has caught up.
1573 However there are likely to be other architectures where GMP could
1574 provide a boost. This ENGINE is not built in by default, but it can be
1575 specified at Configure time and should be accompanied by the necessary
1576 linker additions, eg;
1577 ./config -DOPENSSL_USE_GMP -lgmp
1580 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1581 testing availability of engines with "-t" - the old behaviour is
1582 produced by increasing the feature's verbosity with "-tt".
1585 *) ECDSA routines: under certain error conditions uninitialized BN objects
1586 could be freed. Solution: make sure initialization is performed early
1587 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1591 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1592 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1593 software implementations. For DSA and DH, parameter generation can
1594 also be overriden by providing the appropriate method callbacks.
1597 *) Change the "progress" mechanism used in key-generation and
1598 primality testing to functions that take a new BN_GENCB pointer in
1599 place of callback/argument pairs. The new API functions have "_ex"
1600 postfixes and the older functions are reimplemented as wrappers for
1601 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1602 declarations of the old functions to help (graceful) attempts to
1603 migrate to the new functions. Also, the new key-generation API
1604 functions operate on a caller-supplied key-structure and return
1605 success/failure rather than returning a key or NULL - this is to
1606 help make "keygen" another member function of RSA_METHOD etc.
1608 Example for using the new callback interface:
1610 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1614 BN_GENCB_set(&my_cb, my_callback, my_arg);
1616 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1617 /* For the meaning of a, b in calls to my_callback(), see the
1618 * documentation of the function that calls the callback.
1619 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1620 * my_callback should return 1 if it wants BN_is_prime_ex()
1621 * to continue, or 0 to stop.
1626 *) Change the ZLIB compression method to be stateful, and make it
1627 available to TLS with the number defined in
1628 draft-ietf-tls-compression-04.txt.
1631 *) Add the ASN.1 structures and functions for CertificatePair, which
1632 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1634 CertificatePair ::= SEQUENCE {
1635 forward [0] Certificate OPTIONAL,
1636 reverse [1] Certificate OPTIONAL,
1637 -- at least one of the pair shall be present -- }
1639 Also implement the PEM functions to read and write certificate
1640 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1642 This needed to be defined, mostly for the sake of the LDAP
1643 attribute crossCertificatePair, but may prove useful elsewhere as
1647 *) Make it possible to inhibit symlinking of shared libraries in
1648 Makefile.shared, for Cygwin's sake.
1651 *) Extend the BIGNUM API by creating a function
1652 void BN_set_negative(BIGNUM *a, int neg);
1653 and a macro that behave like
1654 int BN_is_negative(const BIGNUM *a);
1656 to avoid the need to access 'a->neg' directly in applications.
1659 *) Implement fast modular reduction for pseudo-Mersenne primes
1660 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1661 EC_GROUP_new_curve_GFp() will now automatically use this
1663 [Nils Larsch <nla@trustcenter.de>]
1665 *) Add new lock type (CRYPTO_LOCK_BN).
1668 *) Change the ENGINE framework to automatically load engines
1669 dynamically from specific directories unless they could be
1670 found to already be built in or loaded. Move all the
1671 current engines except for the cryptodev one to a new
1673 The engines in engines/ are built as shared libraries if
1674 the "shared" options was given to ./Configure or ./config.
1675 Otherwise, they are inserted in libcrypto.a.
1676 /usr/local/ssl/engines is the default directory for dynamic
1677 engines, but that can be overriden at configure time through
1678 the usual use of --prefix and/or --openssldir, and at run
1679 time with the environment variable OPENSSL_ENGINES.
1680 [Geoff Thorpe and Richard Levitte]
1682 *) Add Makefile.shared, a helper makefile to build shared
1683 libraries. Addapt Makefile.org.
1686 *) Add version info to Win32 DLLs.
1687 [Peter 'Luna' Runestig" <peter@runestig.com>]
1689 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1690 can be added using this API to created arbitrary PKCS#12
1691 files while avoiding the low level API.
1693 New options to PKCS12_create(), key or cert can be NULL and
1694 will then be omitted from the output file. The encryption
1695 algorithm NIDs can be set to -1 for no encryption, the mac
1696 iteration count can be set to 0 to omit the mac.
1698 Enhance pkcs12 utility by making the -nokeys and -nocerts
1699 options work when creating a PKCS#12 file. New option -nomac
1700 to omit the mac, NONE can be set for an encryption algorithm.
1701 New code is modified to use the enhanced PKCS12_create()
1702 instead of the low level API.
1705 *) Extend ASN1 encoder to support indefinite length constructed
1706 encoding. This can output sequences tags and octet strings in
1707 this form. Modify pk7_asn1.c to support indefinite length
1708 encoding. This is experimental and needs additional code to
1709 be useful, such as an ASN1 bio and some enhanced streaming
1712 Extend template encode functionality so that tagging is passed
1713 down to the template encoder.
1716 *) Let 'openssl req' fail if an argument to '-newkey' is not
1717 recognized instead of using RSA as a default.
1720 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1721 As these are not official, they are not included in "ALL";
1722 the "ECCdraft" ciphersuite group alias can be used to select them.
1723 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1725 *) Add ECDH engine support.
1726 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1728 *) Add ECDH in new directory crypto/ecdh/.
1729 [Douglas Stebila (Sun Microsystems Laboratories)]
1731 *) Let BN_rand_range() abort with an error after 100 iterations
1732 without success (which indicates a broken PRNG).
1735 *) Change BN_mod_sqrt() so that it verifies that the input value
1736 is really the square of the return value. (Previously,
1737 BN_mod_sqrt would show GIGO behaviour.)
1740 *) Add named elliptic curves over binary fields from X9.62, SECG,
1741 and WAP/WTLS; add OIDs that were still missing.
1743 [Sheueling Chang Shantz and Douglas Stebila
1744 (Sun Microsystems Laboratories)]
1746 *) Extend the EC library for elliptic curves over binary fields
1747 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1750 EC_GF2m_simple_method
1754 EC_GROUP_new_curve_GF2m
1755 EC_GROUP_set_curve_GF2m
1756 EC_GROUP_get_curve_GF2m
1757 EC_POINT_set_affine_coordinates_GF2m
1758 EC_POINT_get_affine_coordinates_GF2m
1759 EC_POINT_set_compressed_coordinates_GF2m
1761 Point compression for binary fields is disabled by default for
1762 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1765 As binary polynomials are represented as BIGNUMs, various members
1766 of the EC_GROUP and EC_POINT data structures can be shared
1767 between the implementations for prime fields and binary fields;
1768 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1769 are essentially identical to their ..._GFp counterparts.
1770 (For simplicity, the '..._GFp' prefix has been dropped from
1771 various internal method names.)
1773 An internal 'field_div' method (similar to 'field_mul' and
1774 'field_sqr') has been added; this is used only for binary fields.
1776 [Sheueling Chang Shantz and Douglas Stebila
1777 (Sun Microsystems Laboratories)]
1779 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1780 through methods ('mul', 'precompute_mult').
1782 The generic implementations (now internally called 'ec_wNAF_mul'
1783 and 'ec_wNAF_precomputed_mult') remain the default if these
1784 methods are undefined.
1786 [Sheueling Chang Shantz and Douglas Stebila
1787 (Sun Microsystems Laboratories)]
1789 *) New function EC_GROUP_get_degree, which is defined through
1790 EC_METHOD. For curves over prime fields, this returns the bit
1791 length of the modulus.
1793 [Sheueling Chang Shantz and Douglas Stebila
1794 (Sun Microsystems Laboratories)]
1796 *) New functions EC_GROUP_dup, EC_POINT_dup.
1797 (These simply call ..._new and ..._copy).
1799 [Sheueling Chang Shantz and Douglas Stebila
1800 (Sun Microsystems Laboratories)]
1802 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1803 Polynomials are represented as BIGNUMs (where the sign bit is not
1804 used) in the following functions [macros]:
1807 BN_GF2m_sub [= BN_GF2m_add]
1808 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1809 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1810 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1812 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1813 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1814 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1815 BN_GF2m_cmp [= BN_ucmp]
1817 (Note that only the 'mod' functions are actually for fields GF(2^m).
1818 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1820 For some functions, an the irreducible polynomial defining a
1821 field can be given as an 'unsigned int[]' with strictly
1822 decreasing elements giving the indices of those bits that are set;
1823 i.e., p[] represents the polynomial
1824 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1826 p[0] > p[1] > ... > p[k] = 0.
1827 This applies to the following functions:
1832 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1833 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1835 BN_GF2m_mod_sqrt_arr
1836 BN_GF2m_mod_solve_quad_arr
1840 Conversion can be performed by the following functions:
1845 bntest.c has additional tests for binary polynomial arithmetic.
1847 Two implementations for BN_GF2m_mod_div() are available.
1848 The default algorithm simply uses BN_GF2m_mod_inv() and
1849 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1850 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1851 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1853 [Sheueling Chang Shantz and Douglas Stebila
1854 (Sun Microsystems Laboratories)]
1856 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1857 functionality is disabled at compile-time.
1858 [Douglas Stebila <douglas.stebila@sun.com>]
1860 *) Change default behaviour of 'openssl asn1parse' so that more
1861 information is visible when viewing, e.g., a certificate:
1863 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1864 mode the content of non-printable OCTET STRINGs is output in a
1865 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1866 avoid the appearance of a printable string.
1867 [Nils Larsch <nla@trustcenter.de>]
1869 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1871 EC_GROUP_set_asn1_flag()
1872 EC_GROUP_get_asn1_flag()
1873 EC_GROUP_set_point_conversion_form()
1874 EC_GROUP_get_point_conversion_form()
1875 These control ASN1 encoding details:
1876 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1877 has been set to OPENSSL_EC_NAMED_CURVE.
1878 - Points are encoded in uncompressed form by default; options for
1879 asn1_for are as for point2oct, namely
1880 POINT_CONVERSION_COMPRESSED
1881 POINT_CONVERSION_UNCOMPRESSED
1882 POINT_CONVERSION_HYBRID
1884 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1887 EC_GROUP_get0_seed()
1888 EC_GROUP_get_seed_len()
1889 This is used only for ASN1 purposes (so far).
1890 [Nils Larsch <nla@trustcenter.de>]
1892 *) Add 'field_type' member to EC_METHOD, which holds the NID
1893 of the appropriate field type OID. The new function
1894 EC_METHOD_get_field_type() returns this value.
1895 [Nils Larsch <nla@trustcenter.de>]
1900 EC_POINT_point2hex()
1901 EC_POINT_hex2point()
1902 providing useful interfaces to EC_POINT_point2oct() and
1903 EC_POINT_oct2point().
1904 [Nils Larsch <nla@trustcenter.de>]
1906 *) Change internals of the EC library so that the functions
1907 EC_GROUP_set_generator()
1908 EC_GROUP_get_generator()
1909 EC_GROUP_get_order()
1910 EC_GROUP_get_cofactor()
1911 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1912 to methods, which would lead to unnecessary code duplication when
1913 adding different types of curves.
1914 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1916 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1917 arithmetic, and such that modified wNAFs are generated
1918 (which avoid length expansion in many cases).
1921 *) Add a function EC_GROUP_check_discriminant() (defined via
1922 EC_METHOD) that verifies that the curve discriminant is non-zero.
1924 Add a function EC_GROUP_check() that makes some sanity tests
1925 on a EC_GROUP, its generator and order. This includes
1926 EC_GROUP_check_discriminant().
1927 [Nils Larsch <nla@trustcenter.de>]
1929 *) Add ECDSA in new directory crypto/ecdsa/.
1931 Add applications 'openssl ecparam' and 'openssl ecdsa'
1932 (these are based on 'openssl dsaparam' and 'openssl dsa').
1934 ECDSA support is also included in various other files across the
1935 library. Most notably,
1936 - 'openssl req' now has a '-newkey ecdsa:file' option;
1937 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1938 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1939 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1940 them suitable for ECDSA where domain parameters must be
1941 extracted before the specific public key;
1942 - ECDSA engine support has been added.
1943 [Nils Larsch <nla@trustcenter.de>]
1945 *) Include some named elliptic curves, and add OIDs from X9.62,
1946 SECG, and WAP/WTLS. Each curve can be obtained from the new
1948 EC_GROUP_new_by_curve_name(),
1949 and the list of available named curves can be obtained with
1950 EC_get_builtin_curves().
1951 Also add a 'curve_name' member to EC_GROUP objects, which can be
1953 EC_GROUP_set_curve_name()
1954 EC_GROUP_get_curve_name()
1955 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1957 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1958 was actually never needed) and in BN_mul(). The removal in BN_mul()
1959 required a small change in bn_mul_part_recursive() and the addition
1960 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1961 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1962 bn_sub_words() and bn_add_words() except they take arrays with
1966 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1968 *) In the SSL/TLS server implementation, be strict about session ID
1969 context matching (which matters if an application uses a single
1970 external cache for different purposes). Previously,
1971 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1972 set. This did ensure strict client verification, but meant that,
1973 with applications using a single external cache for quite
1974 different requirements, clients could circumvent ciphersuite
1975 restrictions for a given session ID context by starting a session
1976 in a different context.
1979 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1981 *) Cleanse PEM buffers before freeing them since they may contain
1983 [Benjamin Bennett <ben@psc.edu>]
1985 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1986 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1987 authentication-only ciphersuites.
1990 *) Since AES128 and AES256 share a single mask bit in the logic of
1991 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1992 kludge to work properly if AES128 is available and AES256 isn't.
1995 *) Expand security boundary to match 1.1.1 module.
1998 *) Remove redundant features: hash file source, editing of test vectors
1999 modify fipsld to use external fips_premain.c signature.
2002 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2003 run algorithm test programs.
2006 *) Make algorithm test programs more tolerant of whitespace.
2009 *) Have SSL/TLS server implementation tolerate "mismatched" record
2010 protocol version while receiving ClientHello even if the
2011 ClientHello is fragmented. (The server can't insist on the
2012 particular protocol version it has chosen before the ServerHello
2013 message has informed the client about his choice.)
2016 *) Load error codes if they are not already present instead of using a
2017 static variable. This allows them to be cleanly unloaded and reloaded.
2020 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2022 *) Introduce limits to prevent malicious keys being able to
2023 cause a denial of service. (CVE-2006-2940)
2024 [Steve Henson, Bodo Moeller]
2026 *) Fix ASN.1 parsing of certain invalid structures that can result
2027 in a denial of service. (CVE-2006-2937) [Steve Henson]
2029 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2030 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2032 *) Fix SSL client code which could crash if connecting to a
2033 malicious SSLv2 server. (CVE-2006-4343)
2034 [Tavis Ormandy and Will Drewry, Google Security Team]
2036 *) Change ciphersuite string processing so that an explicit
2037 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2038 will no longer include "AES128-SHA"), and any other similar
2039 ciphersuite (same bitmap) from *other* protocol versions (so that
2040 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2041 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2042 changes from 0.9.8b and 0.9.8d.
2045 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2047 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2048 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2050 *) Change the Unix randomness entropy gathering to use poll() when
2051 possible instead of select(), since the latter has some
2052 undesirable limitations.
2053 [Darryl Miles via Richard Levitte and Bodo Moeller]
2055 *) Disable rogue ciphersuites:
2057 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2058 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2059 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2061 The latter two were purportedly from
2062 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2065 Also deactive the remaining ciphersuites from
2066 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2067 unofficial, and the ID has long expired.
2070 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2071 dual-core machines) and other potential thread-safety issues.
2074 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2076 *) Adapt fipsld and the build system to link against the validated FIPS
2077 module in FIPS mode.
2080 *) Fixes for VC++ 2005 build under Windows.
2083 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2084 from a Windows bash shell such as MSYS. It is autodetected from the
2085 "config" script when run from a VC++ environment. Modify standard VC++
2086 build to use fipscanister.o from the GNU make build.
2089 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2091 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2092 The value now differs depending on if you build for FIPS or not.
2093 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2094 safely run with a non-FIPSed libcrypto, as it may crash because of
2095 the difference induced by this change.
2098 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2100 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2101 (part of SSL_OP_ALL). This option used to disable the
2102 countermeasure against man-in-the-middle protocol-version
2103 rollback in the SSL 2.0 server implementation, which is a bad
2104 idea. (CVE-2005-2969)
2106 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2107 for Information Security, National Institute of Advanced Industrial
2108 Science and Technology [AIST], Japan)]
2110 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2111 mainly for FIPS compliance and not fully integrated at this stage.
2114 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2115 the exponentiation using a fixed-length exponent. (Otherwise,
2116 the information leaked through timing could expose the secret key
2117 after many signatures; cf. Bleichenbacher's attack on DSA with
2121 *) Make a new fixed-window mod_exp implementation the default for
2122 RSA, DSA, and DH private-key operations so that the sequence of
2123 squares and multiplies and the memory access pattern are
2124 independent of the particular secret key. This will mitigate
2125 cache-timing and potential related attacks.
2127 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2128 and this is automatically used by BN_mod_exp_mont() if the new flag
2129 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2130 will use this BN flag for private exponents unless the flag
2131 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2132 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2134 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2136 *) Change the client implementation for SSLv23_method() and
2137 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2138 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2139 (Previously, the SSL 2.0 backwards compatible Client Hello
2140 message format would be used even with SSL_OP_NO_SSLv2.)
2143 *) Add support for smime-type MIME parameter in S/MIME messages which some
2147 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2148 a threadsafe manner. Modify rsa code to use new function and add calls
2149 to dsa and dh code (which had race conditions before).
2152 *) Include the fixed error library code in the C error file definitions
2153 instead of fixing them up at runtime. This keeps the error code
2154 structures constant.
2157 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2159 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2162 *) Fixes for newer kerberos headers. NB: the casts are needed because
2163 the 'length' field is signed on one version and unsigned on another
2164 with no (?) obvious way to tell the difference, without these VC++
2165 complains. Also the "definition" of FAR (blank) is no longer included
2166 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2167 some needed definitions.
2170 *) Undo Cygwin change.
2173 *) Added support for proxy certificates according to RFC 3820.
2174 Because they may be a security thread to unaware applications,
2175 they must be explicitely allowed in run-time. See
2176 docs/HOWTO/proxy_certificates.txt for further information.
2179 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2181 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2182 server and client random values. Previously
2183 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2184 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2186 This change has negligible security impact because:
2188 1. Server and client random values still have 24 bytes of pseudo random
2191 2. Server and client random values are sent in the clear in the initial
2194 3. The master secret is derived using the premaster secret (48 bytes in
2195 size for static RSA ciphersuites) as well as client server and random
2198 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2201 [Stephen Henson, reported by UK NISCC]
2203 *) Use Windows randomness collection on Cygwin.
2206 *) Fix hang in EGD/PRNGD query when communication socket is closed
2207 prematurely by EGD/PRNGD.
2208 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2210 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2213 *) Back-port of selected performance improvements from development
2214 branch, as well as improved support for PowerPC platforms.
2217 *) Add lots of checks for memory allocation failure, error codes to indicate
2218 failure and freeing up memory if a failure occurs.
2219 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2221 *) Add new -passin argument to dgst.
2224 *) Perform some character comparisons of different types in X509_NAME_cmp:
2225 this is needed for some certificates that reencode DNs into UTF8Strings
2226 (in violation of RFC3280) and can't or wont issue name rollover
2230 *) Make an explicit check during certificate validation to see that
2231 the CA setting in each certificate on the chain is correct. As a
2232 side effect always do the following basic checks on extensions,
2233 not just when there's an associated purpose to the check:
2235 - if there is an unhandled critical extension (unless the user
2236 has chosen to ignore this fault)
2237 - if the path length has been exceeded (if one is set at all)
2238 - that certain extensions fit the associated purpose (if one has
2242 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2244 *) Avoid a race condition when CRLs are checked in a multi threaded
2245 environment. This would happen due to the reordering of the revoked
2246 entries during signature checking and serial number lookup. Now the
2247 encoding is cached and the serial number sort performed under a lock.
2248 Add new STACK function sk_is_sorted().
2251 *) Add Delta CRL to the extension code.
2254 *) Various fixes to s3_pkt.c so alerts are sent properly.
2255 [David Holmes <d.holmes@f5.com>]
2257 *) Reduce the chances of duplicate issuer name and serial numbers (in
2258 violation of RFC3280) using the OpenSSL certificate creation utilities.
2259 This is done by creating a random 64 bit value for the initial serial
2260 number when a serial number file is created or when a self signed
2261 certificate is created using 'openssl req -x509'. The initial serial
2262 number file is created using 'openssl x509 -next_serial' in CA.pl
2263 rather than being initialized to 1.
2266 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2268 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2269 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2270 [Joe Orton, Steve Henson]
2272 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2274 [Joe Orton, Steve Henson]
2276 *) Make it possible to have multiple active certificates with the same
2277 subject in the CA index file. This is done only if the keyword
2278 'unique_subject' is set to 'no' in the main CA section (default
2279 if 'CA_default') of the configuration file. The value is saved
2280 with the database itself in a separate index attribute file,
2281 named like the index file with '.attr' appended to the name.
2284 *) X509 verify fixes. Disable broken certificate workarounds when
2285 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2286 keyUsage extension present. Don't accept CRLs with unhandled critical
2287 extensions: since verify currently doesn't process CRL extensions this
2288 rejects a CRL with *any* critical extensions. Add new verify error codes
2292 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2293 A clarification of RFC2560 will require the use of OCTET STRINGs and
2294 some implementations cannot handle the current raw format. Since OpenSSL
2295 copies and compares OCSP nonces as opaque blobs without any attempt at
2296 parsing them this should not create any compatibility issues.
2299 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2300 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2301 this HMAC (and other) operations are several times slower than OpenSSL
2305 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2306 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2308 *) Use the correct content when signing type "other".
2311 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2313 *) Fix various bugs revealed by running the NISCC test suite:
2315 Stop out of bounds reads in the ASN1 code when presented with
2316 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2318 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2320 If verify callback ignores invalid public key errors don't try to check
2321 certificate signature with the NULL public key.
2325 *) New -ignore_err option in ocsp application to stop the server
2326 exiting on the first error in a request.
2329 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2330 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2334 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2335 extra data after the compression methods not only for TLS 1.0
2336 but also for SSL 3.0 (as required by the specification).
2337 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2339 *) Change X509_certificate_type() to mark the key as exported/exportable
2340 when it's 512 *bits* long, not 512 bytes.
2343 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2344 blocks during encryption.
2347 *) Various fixes to base64 BIO and non blocking I/O. On write
2348 flushes were not handled properly if the BIO retried. On read
2349 data was not being buffered properly and had various logic bugs.
2350 This also affects blocking I/O when the data being decoded is a
2354 *) Various S/MIME bugfixes and compatibility changes:
2355 output correct application/pkcs7 MIME type if
2356 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2357 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2358 of files as .eml work). Correctly handle very long lines in MIME
2362 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2364 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2365 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2366 a protocol version number mismatch like a decryption error
2367 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2370 *) Turn on RSA blinding by default in the default implementation
2371 to avoid a timing attack. Applications that don't want it can call
2372 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2373 They would be ill-advised to do so in most cases.
2374 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2376 *) Change RSA blinding code so that it works when the PRNG is not
2377 seeded (in this case, the secret RSA exponent is abused as
2378 an unpredictable seed -- if it is not unpredictable, there
2379 is no point in blinding anyway). Make RSA blinding thread-safe
2380 by remembering the creator's thread ID in rsa->blinding and
2381 having all other threads use local one-time blinding factors
2382 (this requires more computation than sharing rsa->blinding, but
2383 avoids excessive locking; and if an RSA object is not shared
2384 between threads, blinding will still be very fast).
2387 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2388 ENGINE as defaults for all supported algorithms irrespective of
2389 the 'flags' parameter. 'flags' is now honoured, so applications
2390 should make sure they are passing it correctly.
2393 *) Target "mingw" now allows native Windows code to be generated in
2394 the Cygwin environment as well as with the MinGW compiler.
2397 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2399 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2400 via timing by performing a MAC computation even if incorrrect
2401 block cipher padding has been found. This is a countermeasure
2402 against active attacks where the attacker has to distinguish
2403 between bad padding and a MAC verification error. (CVE-2003-0078)
2405 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2406 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2407 Martin Vuagnoux (EPFL, Ilion)]
2409 *) Make the no-err option work as intended. The intention with no-err
2410 is not to have the whole error stack handling routines removed from
2411 libcrypto, it's only intended to remove all the function name and
2412 reason texts, thereby removing some of the footprint that may not
2413 be interesting if those errors aren't displayed anyway.
2415 NOTE: it's still possible for any application or module to have it's
2416 own set of error texts inserted. The routines are there, just not
2417 used by default when no-err is given.
2420 *) Add support for FreeBSD on IA64.
2421 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2423 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2424 Kerberos function mit_des_cbc_cksum(). Before this change,
2425 the value returned by DES_cbc_cksum() was like the one from
2426 mit_des_cbc_cksum(), except the bytes were swapped.
2427 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2429 *) Allow an application to disable the automatic SSL chain building.
2430 Before this a rather primitive chain build was always performed in
2431 ssl3_output_cert_chain(): an application had no way to send the
2432 correct chain if the automatic operation produced an incorrect result.
2434 Now the chain builder is disabled if either:
2436 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2438 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2440 The reasoning behind this is that an application would not want the
2441 auto chain building to take place if extra chain certificates are
2442 present and it might also want a means of sending no additional
2443 certificates (for example the chain has two certificates and the
2447 *) Add the possibility to build without the ENGINE framework.
2448 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2450 *) Under Win32 gmtime() can return NULL: check return value in
2451 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2454 *) DSA routines: under certain error conditions uninitialized BN objects
2455 could be freed. Solution: make sure initialization is performed early
2456 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2457 Nils Larsch <nla@trustcenter.de> via PR#459)
2460 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2461 checked on reconnect on the client side, therefore session resumption
2462 could still fail with a "ssl session id is different" error. This
2463 behaviour is masked when SSL_OP_ALL is used due to
2464 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2465 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2466 followup to PR #377.
2469 *) IA-32 assembler support enhancements: unified ELF targets, support
2470 for SCO/Caldera platforms, fix for Cygwin shared build.
2473 *) Add support for FreeBSD on sparc64. As a consequence, support for
2474 FreeBSD on non-x86 processors is separate from x86 processors on
2475 the config script, much like the NetBSD support.
2476 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2478 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2480 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2483 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2484 code (06) was taken as the first octet of the session ID and the last
2485 octet was ignored consequently. As a result SSLv2 client side session
2486 caching could not have worked due to the session ID mismatch between
2488 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2492 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2493 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2497 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2498 seems that in spite of existing for more than a year, many application
2499 author have done nothing to provide the necessary callbacks, which
2500 means that this particular engine will not work properly anywhere.
2501 This is a very unfortunate situation which forces us, in the name
2502 of usability, to give the hw_ncipher.c a static lock, which is part
2504 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2505 appear in 0.9.8 or later. We EXPECT application authors to have
2506 dealt properly with this when 0.9.8 is released (unless we actually
2507 make such changes in the libcrypto locking code that changes will
2508 have to be made anyway).
2511 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2512 octets have been read, EOF or an error occurs. Without this change
2513 some truncated ASN1 structures will not produce an error.
2516 *) Disable Heimdal support, since it hasn't been fully implemented.
2517 Still give the possibility to force the use of Heimdal, but with
2518 warnings and a request that patches get sent to openssl-dev.
2521 *) Add the VC-CE target, introduce the WINCE sysname, and add
2522 INSTALL.WCE and appropriate conditionals to make it build.
2523 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2525 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2526 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2527 edit numbers of the version.
2528 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2530 *) Introduce safe string copy and catenation functions
2531 (BUF_strlcpy() and BUF_strlcat()).
2532 [Ben Laurie (CHATS) and Richard Levitte]
2534 *) Avoid using fixed-size buffers for one-line DNs.
2535 [Ben Laurie (CHATS)]
2537 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2538 resizing buffers containing secrets, and use where appropriate.
2539 [Ben Laurie (CHATS)]
2541 *) Avoid using fixed size buffers for configuration file location.
2542 [Ben Laurie (CHATS)]
2544 *) Avoid filename truncation for various CA files.
2545 [Ben Laurie (CHATS)]
2547 *) Use sizeof in preference to magic numbers.
2548 [Ben Laurie (CHATS)]
2550 *) Avoid filename truncation in cert requests.
2551 [Ben Laurie (CHATS)]
2553 *) Add assertions to check for (supposedly impossible) buffer
2555 [Ben Laurie (CHATS)]
2557 *) Don't cache truncated DNS entries in the local cache (this could
2558 potentially lead to a spoofing attack).
2559 [Ben Laurie (CHATS)]
2561 *) Fix various buffers to be large enough for hex/decimal
2562 representations in a platform independent manner.
2563 [Ben Laurie (CHATS)]
2565 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2566 resizing buffers containing secrets, and use where appropriate.
2567 [Ben Laurie (CHATS)]
2569 *) Add BIO_indent() to avoid much slightly worrying code to do
2571 [Ben Laurie (CHATS)]
2573 *) Convert sprintf()/BIO_puts() to BIO_printf().
2574 [Ben Laurie (CHATS)]
2576 *) buffer_gets() could terminate with the buffer only half
2578 [Ben Laurie (CHATS)]
2580 *) Add assertions to prevent user-supplied crypto functions from
2581 overflowing internal buffers by having large block sizes, etc.
2582 [Ben Laurie (CHATS)]
2584 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2586 [Ben Laurie (CHATS)]
2588 *) Eliminate unused copy of key in RC4.
2589 [Ben Laurie (CHATS)]
2591 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2592 [Ben Laurie (CHATS)]
2594 *) Fix off-by-one error in EGD path.
2595 [Ben Laurie (CHATS)]
2597 *) If RANDFILE path is too long, ignore instead of truncating.
2598 [Ben Laurie (CHATS)]
2600 *) Eliminate unused and incorrectly sized X.509 structure
2602 [Ben Laurie (CHATS)]
2604 *) Eliminate unused and dangerous function knumber().
2605 [Ben Laurie (CHATS)]
2607 *) Eliminate unused and dangerous structure, KSSL_ERR.
2608 [Ben Laurie (CHATS)]
2610 *) Protect against overlong session ID context length in an encoded
2611 session object. Since these are local, this does not appear to be
2613 [Ben Laurie (CHATS)]
2615 *) Change from security patch (see 0.9.6e below) that did not affect
2616 the 0.9.6 release series:
2618 Remote buffer overflow in SSL3 protocol - an attacker could
2619 supply an oversized master key in Kerberos-enabled versions.
2621 [Ben Laurie (CHATS)]
2623 *) Change the SSL kerb5 codes to match RFC 2712.
2626 *) Make -nameopt work fully for req and add -reqopt switch.
2627 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2629 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2630 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2632 *) Make sure tests can be performed even if the corresponding algorithms
2633 have been removed entirely. This was also the last step to make
2634 OpenSSL compilable with DJGPP under all reasonable conditions.
2635 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2637 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2638 to allow version independent disabling of normally unselected ciphers,
2639 which may be activated as a side-effect of selecting a single cipher.
2641 (E.g., cipher list string "RSA" enables ciphersuites that are left
2642 out of "ALL" because they do not provide symmetric encryption.
2643 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2644 [Lutz Jaenicke, Bodo Moeller]
2646 *) Add appropriate support for separate platform-dependent build
2647 directories. The recommended way to make a platform-dependent
2648 build directory is the following (tested on Linux), maybe with
2651 # Place yourself outside of the OpenSSL source tree. In
2652 # this example, the environment variable OPENSSL_SOURCE
2653 # is assumed to contain the absolute OpenSSL source directory.
2654 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2655 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2656 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2657 mkdir -p `dirname $F`
2658 ln -s $OPENSSL_SOURCE/$F $F
2661 To be absolutely sure not to disturb the source tree, a "make clean"
2662 is a good thing. If it isn't successfull, don't worry about it,
2663 it probably means the source directory is very clean.
2666 *) Make sure any ENGINE control commands make local copies of string
2667 pointers passed to them whenever necessary. Otherwise it is possible
2668 the caller may have overwritten (or deallocated) the original string
2669 data when a later ENGINE operation tries to use the stored values.
2670 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2672 *) Improve diagnostics in file reading and command-line digests.
2673 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2675 *) Add AES modes CFB and OFB to the object database. Correct an
2676 error in AES-CFB decryption.
2679 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2680 allows existing EVP_CIPHER_CTX structures to be reused after
2681 calling EVP_*Final(). This behaviour is used by encryption
2682 BIOs and some applications. This has the side effect that
2683 applications must explicitly clean up cipher contexts with
2684 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2687 *) Check the values of dna and dnb in bn_mul_recursive before calling
2688 bn_mul_comba (a non zero value means the a or b arrays do not contain
2689 n2 elements) and fallback to bn_mul_normal if either is not zero.
2692 *) Fix escaping of non-ASCII characters when using the -subj option
2693 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2696 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2697 form for "surname", serialNumber has no short form.
2698 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2699 therefore remove "mail" short name for "internet 7".
2700 The OID for unique identifiers in X509 certificates is
2701 x500UniqueIdentifier, not uniqueIdentifier.
2702 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2705 *) Add an "init" command to the ENGINE config module and auto initialize
2706 ENGINEs. Without any "init" command the ENGINE will be initialized
2707 after all ctrl commands have been executed on it. If init=1 the
2708 ENGINE is initailized at that point (ctrls before that point are run
2709 on the uninitialized ENGINE and after on the initialized one). If
2710 init=0 then the ENGINE will not be iniatialized at all.
2713 *) Fix the 'app_verify_callback' interface so that the user-defined
2714 argument is actually passed to the callback: In the
2715 SSL_CTX_set_cert_verify_callback() prototype, the callback
2716 declaration has been changed from
2719 int (*cb)(X509_STORE_CTX *,void *);
2720 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2721 i=s->ctx->app_verify_callback(&ctx)
2722 has been changed into
2723 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2725 To update applications using SSL_CTX_set_cert_verify_callback(),
2726 a dummy argument can be added to their callback functions.
2727 [D. K. Smetters <smetters@parc.xerox.com>]
2729 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2730 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2732 *) Add and OPENSSL_LOAD_CONF define which will cause
2733 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2734 This allows older applications to transparently support certain
2735 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2736 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2737 load the config file and OPENSSL_add_all_algorithms_conf() which will
2738 always load it have also been added.
2741 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2742 Adjust NIDs and EVP layer.
2743 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2745 *) Config modules support in openssl utility.
2747 Most commands now load modules from the config file,
2748 though in a few (such as version) this isn't done
2749 because it couldn't be used for anything.
2751 In the case of ca and req the config file used is
2752 the same as the utility itself: that is the -config
2753 command line option can be used to specify an
2757 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2758 use "openssl_conf" if filename is NULL use default openssl config file.
2761 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2762 config section name. Add a new flag to tolerate a missing config file
2763 and move code to CONF_modules_load_file().
2766 *) Support for crypto accelerator cards from Accelerated Encryption
2767 Processing, www.aep.ie. (Use engine 'aep')
2768 The support was copied from 0.9.6c [engine] and adapted/corrected
2769 to work with the new engine framework.
2770 [AEP Inc. and Richard Levitte]
2772 *) Support for SureWare crypto accelerator cards from Baltimore
2773 Technologies. (Use engine 'sureware')
2774 The support was copied from 0.9.6c [engine] and adapted
2775 to work with the new engine framework.
2778 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2779 make the newer ENGINE framework commands for the CHIL engine work.
2780 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2782 *) Make it possible to produce shared libraries on ReliantUNIX.
2783 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2785 *) Add the configuration target debug-linux-ppro.
2786 Make 'openssl rsa' use the general key loading routines
2787 implemented in apps.c, and make those routines able to
2788 handle the key format FORMAT_NETSCAPE and the variant
2790 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2792 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2793 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2795 *) Add -keyform to rsautl, and document -engine.
2796 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2798 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2799 BIO_R_NO_SUCH_FILE error code rather than the generic
2800 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2803 *) Add new functions
2805 ERR_peek_last_error_line
2806 ERR_peek_last_error_line_data.
2807 These are similar to
2810 ERR_peek_error_line_data,
2811 but report on the latest error recorded rather than the first one
2812 still in the error queue.
2813 [Ben Laurie, Bodo Moeller]
2815 *) default_algorithms option in ENGINE config module. This allows things
2817 default_algorithms = ALL
2818 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2821 *) Prelminary ENGINE config module.
2824 *) New experimental application configuration code.
2827 *) Change the AES code to follow the same name structure as all other
2828 symmetric ciphers, and behave the same way. Move everything to
2829 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2830 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2832 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2833 [Ben Laurie and Theo de Raadt]
2835 *) Add option to output public keys in req command.
2836 [Massimiliano Pala madwolf@openca.org]
2838 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2839 (up to about 10% better than before for P-192 and P-224).
2842 *) New functions/macros
2844 SSL_CTX_set_msg_callback(ctx, cb)
2845 SSL_CTX_set_msg_callback_arg(ctx, arg)
2846 SSL_set_msg_callback(ssl, cb)
2847 SSL_set_msg_callback_arg(ssl, arg)
2849 to request calling a callback function
2851 void cb(int write_p, int version, int content_type,
2852 const void *buf, size_t len, SSL *ssl, void *arg)
2854 whenever a protocol message has been completely received
2855 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2856 protocol version according to which the SSL library interprets
2857 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2858 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2859 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2860 specification (change_cipher_spec(20), alert(21), handshake(22)).
2861 'buf' and 'len' point to the actual message, 'ssl' to the
2862 SSL object, and 'arg' is the application-defined value set by
2863 SSL[_CTX]_set_msg_callback_arg().
2865 'openssl s_client' and 'openssl s_server' have new '-msg' options
2866 to enable a callback that displays all protocol messages.
2869 *) Change the shared library support so shared libraries are built as
2870 soon as the corresponding static library is finished, and thereby get
2871 openssl and the test programs linked against the shared library.
2872 This still only happens when the keyword "shard" has been given to
2873 the configuration scripts.
2875 NOTE: shared library support is still an experimental thing, and
2876 backward binary compatibility is still not guaranteed.
2877 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2879 *) Add support for Subject Information Access extension.
2880 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2882 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2883 additional bytes when new memory had to be allocated, not just
2884 when reusing an existing buffer.
2887 *) New command line and configuration option 'utf8' for the req command.
2888 This allows field values to be specified as UTF8 strings.
2891 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2892 runs for the former and machine-readable output for the latter.
2895 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2896 of the e-mail address in the DN (i.e., it will go into a certificate
2897 extension only). The new configuration file option 'email_in_dn = no'
2898 has the same effect.
2899 [Massimiliano Pala madwolf@openca.org]
2901 *) Change all functions with names starting with des_ to be starting
2902 with DES_ instead. Add wrappers that are compatible with libdes,
2903 but are named _ossl_old_des_*. Finally, add macros that map the
2904 des_* symbols to the corresponding _ossl_old_des_* if libdes
2905 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2906 desired, the des_* symbols will be mapped to DES_*, with one
2909 Since we provide two compatibility mappings, the user needs to
2910 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2911 compatibility is desired. The default (i.e., when that macro
2912 isn't defined) is OpenSSL 0.9.6c compatibility.
2914 There are also macros that enable and disable the support of old
2915 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2916 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2917 are defined, the default will apply: to support the old des routines.
2919 In either case, one must include openssl/des.h to get the correct
2920 definitions. Do not try to just include openssl/des_old.h, that
2923 NOTE: This is a major break of an old API into a new one. Software
2924 authors are encouraged to switch to the DES_ style functions. Some
2925 time in the future, des_old.h and the libdes compatibility functions
2926 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2927 default), and then completely removed.
2930 *) Test for certificates which contain unsupported critical extensions.
2931 If such a certificate is found during a verify operation it is
2932 rejected by default: this behaviour can be overridden by either
2933 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2934 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2935 X509_supported_extension() has also been added which returns 1 if a
2936 particular extension is supported.
2939 *) Modify the behaviour of EVP cipher functions in similar way to digests
2940 to retain compatibility with existing code.
2943 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2944 compatibility with existing code. In particular the 'ctx' parameter does
2945 not have to be to be initialized before the call to EVP_DigestInit() and
2946 it is tidied up after a call to EVP_DigestFinal(). New function
2947 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2948 EVP_MD_CTX_copy() changed to not require the destination to be
2949 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2950 requires the destination to be valid.
2952 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2953 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2956 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2957 so that complete 'Handshake' protocol structures are kept in memory
2958 instead of overwriting 'msg_type' and 'length' with 'body' data.
2961 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2962 [Massimo Santin via Richard Levitte]
2964 *) Major restructuring to the underlying ENGINE code. This includes
2965 reduction of linker bloat, separation of pure "ENGINE" manipulation
2966 (initialisation, etc) from functionality dealing with implementations
2967 of specific crypto iterfaces. This change also introduces integrated
2968 support for symmetric ciphers and digest implementations - so ENGINEs
2969 can now accelerate these by providing EVP_CIPHER and EVP_MD
2970 implementations of their own. This is detailed in crypto/engine/README
2971 as it couldn't be adequately described here. However, there are a few
2972 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2973 were changed in the original introduction of ENGINE code have now
2974 reverted back - the hooking from this code to ENGINE is now a good
2975 deal more passive and at run-time, operations deal directly with
2976 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2977 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2978 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2979 they were not being used by the framework as there is no concept of a
2980 BIGNUM_METHOD and they could not be generalised to the new
2981 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2982 ENGINE_cpy() has been removed as it cannot be consistently defined in
2986 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2989 *) Change mkdef.pl to sort symbols that get the same entry number,
2990 and make sure the automatically generated functions ERR_load_*
2991 become part of libeay.num as well.
2994 *) New function SSL_renegotiate_pending(). This returns true once
2995 renegotiation has been requested (either SSL_renegotiate() call
2996 or HelloRequest/ClientHello receveived from the peer) and becomes
2997 false once a handshake has been completed.
2998 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2999 sends a HelloRequest, but does not ensure that a handshake takes
3000 place. SSL_renegotiate_pending() is useful for checking if the
3001 client has followed the request.)
3004 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3005 By default, clients may request session resumption even during
3006 renegotiation (if session ID contexts permit); with this option,
3007 session resumption is possible only in the first handshake.
3009 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3010 more bits available for options that should not be part of
3011 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3014 *) Add some demos for certificate and certificate request creation.
3017 *) Make maximum certificate chain size accepted from the peer application
3018 settable (SSL*_get/set_max_cert_list()), as proposed by
3019 "Douglas E. Engert" <deengert@anl.gov>.
3022 *) Add support for shared libraries for Unixware-7
3023 (Boyd Lynn Gerber <gerberb@zenez.com>).
3026 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3027 be done prior to destruction. Use this to unload error strings from
3028 ENGINEs that load their own error strings. NB: This adds two new API
3029 functions to "get" and "set" this destroy handler in an ENGINE.
3032 *) Alter all existing ENGINE implementations (except "openssl" and
3033 "openbsd") to dynamically instantiate their own error strings. This
3034 makes them more flexible to be built both as statically-linked ENGINEs
3035 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3036 Also, add stub code to each that makes building them as self-contained
3037 shared-libraries easier (see README.ENGINE).
3040 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3041 implementations into applications that are completely implemented in
3042 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3043 commands that can be used to configure what shared-library to load and
3044 to control aspects of the way it is handled. Also, made an update to
3045 the README.ENGINE file that brings its information up-to-date and
3046 provides some information and instructions on the "dynamic" ENGINE
3047 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3050 *) Make it possible to unload ranges of ERR strings with a new
3051 "ERR_unload_strings" function.
3054 *) Add a copy() function to EVP_MD.
3057 *) Make EVP_MD routines take a context pointer instead of just the
3058 md_data void pointer.
3061 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3062 that the digest can only process a single chunk of data
3063 (typically because it is provided by a piece of
3064 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3065 is only going to provide a single chunk of data, and hence the
3066 framework needn't accumulate the data for oneshot drivers.
3069 *) As with "ERR", make it possible to replace the underlying "ex_data"
3070 functions. This change also alters the storage and management of global
3071 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3072 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3073 index counters. The API functions that use this state have been changed
3074 to take a "class_index" rather than pointers to the class's local STACK
3075 and counter, and there is now an API function to dynamically create new
3076 classes. This centralisation allows us to (a) plug a lot of the
3077 thread-safety problems that existed, and (b) makes it possible to clean
3078 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3079 such data would previously have always leaked in application code and
3080 workarounds were in place to make the memory debugging turn a blind eye
3081 to it. Application code that doesn't use this new function will still
3082 leak as before, but their memory debugging output will announce it now
3083 rather than letting it slide.
3085 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3086 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3087 has a return value to indicate success or failure.
3090 *) Make it possible to replace the underlying "ERR" functions such that the
3091 global state (2 LHASH tables and 2 locks) is only used by the "default"
3092 implementation. This change also adds two functions to "get" and "set"
3093 the implementation prior to it being automatically set the first time
3094 any other ERR function takes place. Ie. an application can call "get",
3095 pass the return value to a module it has just loaded, and that module
3096 can call its own "set" function using that value. This means the
3097 module's "ERR" operations will use (and modify) the error state in the
3098 application and not in its own statically linked copy of OpenSSL code.
3101 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3102 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3103 the operation, and provides a more encapsulated way for external code
3104 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3105 to use these functions rather than manually incrementing the counts.
3107 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3110 *) Add EVP test program.
3113 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3116 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3117 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3118 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3119 These allow a CRL to be built without having to access X509_CRL fields
3120 directly. Modify 'ca' application to use new functions.
3123 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3124 bug workarounds. Rollback attack detection is a security feature.
3125 The problem will only arise on OpenSSL servers when TLSv1 is not
3126 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3127 Software authors not wanting to support TLSv1 will have special reasons
3128 for their choice and can explicitly enable this option.
3129 [Bodo Moeller, Lutz Jaenicke]
3131 *) Rationalise EVP so it can be extended: don't include a union of
3132 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3133 (similar to those existing for EVP_CIPHER_CTX).
3138 EVP_MD_CTX_init(&md); /* new function call */
3139 EVP_DigestInit(&md, EVP_sha1());
3140 EVP_DigestUpdate(&md, in, len);
3141 EVP_DigestFinal(&md, out, NULL);
3142 EVP_MD_CTX_cleanup(&md); /* new function call */
3146 *) Make DES key schedule conform to the usual scheme, as well as
3147 correcting its structure. This means that calls to DES functions
3148 now have to pass a pointer to a des_key_schedule instead of a
3149 plain des_key_schedule (which was actually always a pointer
3152 des_key_schedule ks;
3154 des_set_key_checked(..., &ks);
3155 des_ncbc_encrypt(..., &ks, ...);
3157 (Note that a later change renames 'des_...' into 'DES_...'.)
3160 *) Initial reduction of linker bloat: the use of some functions, such as
3161 PEM causes large amounts of unused functions to be linked in due to
3162 poor organisation. For example pem_all.c contains every PEM function
3163 which has a knock on effect of linking in large amounts of (unused)
3164 ASN1 code. Grouping together similar functions and splitting unrelated
3165 functions prevents this.
3168 *) Cleanup of EVP macros.
3171 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3172 correct _ecb suffix.
3175 *) Add initial OCSP responder support to ocsp application. The
3176 revocation information is handled using the text based index
3177 use by the ca application. The responder can either handle
3178 requests generated internally, supplied in files (for example
3179 via a CGI script) or using an internal minimal server.
3182 *) Add configuration choices to get zlib compression for TLS.
3185 *) Changes to Kerberos SSL for RFC 2712 compliance:
3186 1. Implemented real KerberosWrapper, instead of just using
3187 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3188 2. Implemented optional authenticator field of KerberosWrapper.
3190 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3191 and authenticator structs; see crypto/krb5/.
3193 Generalized Kerberos calls to support multiple Kerberos libraries.
3194 [Vern Staats <staatsvr@asc.hpc.mil>,
3195 Jeffrey Altman <jaltman@columbia.edu>
3196 via Richard Levitte]
3198 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3199 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3200 values for each of the key sizes rather than having just
3201 parameters (and 'speed' generating keys each time).
3204 *) Speed up EVP routines.
3207 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3208 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3209 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3210 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3212 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3213 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3214 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3217 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3219 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3222 *) Added the OS2-EMX target.
3223 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3225 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3226 to support NCONF routines in extension code. New function CONF_set_nconf()
3227 to allow functions which take an NCONF to also handle the old LHASH
3228 structure: this means that the old CONF compatible routines can be
3229 retained (in particular wrt extensions) without having to duplicate the
3230 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3233 *) Enhance the general user interface with mechanisms for inner control
3234 and with possibilities to have yes/no kind of prompts.
3237 *) Change all calls to low level digest routines in the library and
3238 applications to use EVP. Add missing calls to HMAC_cleanup() and
3239 don't assume HMAC_CTX can be copied using memcpy().
3240 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3242 *) Add the possibility to control engines through control names but with
3243 arbitrary arguments instead of just a string.
3244 Change the key loaders to take a UI_METHOD instead of a callback
3245 function pointer. NOTE: this breaks binary compatibility with earlier
3246 versions of OpenSSL [engine].
3247 Adapt the nCipher code for these new conditions and add a card insertion
3251 *) Enhance the general user interface with mechanisms to better support
3252 dialog box interfaces, application-defined prompts, the possibility
3253 to use defaults (for example default passwords from somewhere else)
3254 and interrupts/cancellations.
3257 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3258 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3261 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3262 tidy up some unnecessarily weird code in 'sk_new()').
3263 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3265 *) Change the key loading routines for ENGINEs to use the same kind
3266 callback (pem_password_cb) as all other routines that need this
3270 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3271 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3272 than this minimum value is recommended.
3275 *) New random seeder for OpenVMS, using the system process statistics
3276 that are easily reachable.
3279 *) Windows apparently can't transparently handle global
3280 variables defined in DLLs. Initialisations such as:
3282 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3284 wont compile. This is used by the any applications that need to
3285 declare their own ASN1 modules. This was fixed by adding the option
3286 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3287 needed for static libraries under Win32.
3290 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3291 setting of purpose and trust fields. New X509_STORE trust and
3292 purpose functions and tidy up setting in other SSL functions.
3295 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3296 structure. These are inherited by X509_STORE_CTX when it is
3297 initialised. This allows various defaults to be set in the
3298 X509_STORE structure (such as flags for CRL checking and custom
3299 purpose or trust settings) for functions which only use X509_STORE_CTX
3300 internally such as S/MIME.
3302 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3303 trust settings if they are not set in X509_STORE. This allows X509_STORE
3304 purposes and trust (in S/MIME for example) to override any set by default.
3306 Add command line options for CRL checking to smime, s_client and s_server
3310 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3311 are set then the CRL is looked up in the X509_STORE structure and
3312 its validity and signature checked, then if the certificate is found
3313 in the CRL the verify fails with a revoked error.
3315 Various new CRL related callbacks added to X509_STORE_CTX structure.
3317 Command line options added to 'verify' application to support this.
3319 This needs some additional work, such as being able to handle multiple
3320 CRLs with different times, extension based lookup (rather than just
3321 by subject name) and ultimately more complete V2 CRL extension
3325 *) Add a general user interface API (crypto/ui/). This is designed
3326 to replace things like des_read_password and friends (backward
3327 compatibility functions using this new API are provided).
3328 The purpose is to remove prompting functions from the DES code
3329 section as well as provide for prompting through dialog boxes in
3330 a window system and the like.
3333 *) Add "ex_data" support to ENGINE so implementations can add state at a
3334 per-structure level rather than having to store it globally.
3337 *) Make it possible for ENGINE structures to be copied when retrieved by
3338 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3339 This causes the "original" ENGINE structure to act like a template,
3340 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3341 operational state can be localised to each ENGINE structure, despite the
3342 fact they all share the same "methods". New ENGINE structures returned in
3343 this case have no functional references and the return value is the single
3344 structural reference. This matches the single structural reference returned
3345 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3349 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3350 needs to match any other type at all we need to manually clear the
3354 *) Changes to the "openssl engine" utility to include;
3355 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3356 about an ENGINE's available control commands.
3357 - executing control commands from command line arguments using the
3358 '-pre' and '-post' switches. '-post' is only used if '-t' is
3359 specified and the ENGINE is successfully initialised. The syntax for
3360 the individual commands are colon-separated, for example;
3361 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3364 *) New dynamic control command support for ENGINEs. ENGINEs can now
3365 declare their own commands (numbers), names (strings), descriptions,
3366 and input types for run-time discovery by calling applications. A
3367 subset of these commands are implicitly classed as "executable"
3368 depending on their input type, and only these can be invoked through
3369 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3370 can be based on user input, config files, etc). The distinction is
3371 that "executable" commands cannot return anything other than a boolean
3372 result and can only support numeric or string input, whereas some
3373 discoverable commands may only be for direct use through
3374 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3375 pointers, or other custom uses. The "executable" commands are to
3376 support parameterisations of ENGINE behaviour that can be
3377 unambiguously defined by ENGINEs and used consistently across any
3378 OpenSSL-based application. Commands have been added to all the
3379 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3380 control over shared-library paths without source code alterations.
3383 *) Changed all ENGINE implementations to dynamically allocate their
3384 ENGINEs rather than declaring them statically. Apart from this being
3385 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3386 this also allows the implementations to compile without using the
3387 internal engine_int.h header.
3390 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3391 'const' value. Any code that should be able to modify a RAND_METHOD
3392 should already have non-const pointers to it (ie. they should only
3393 modify their own ones).
3396 *) Made a variety of little tweaks to the ENGINE code.
3397 - "atalla" and "ubsec" string definitions were moved from header files
3398 to C code. "nuron" string definitions were placed in variables
3399 rather than hard-coded - allowing parameterisation of these values
3400 later on via ctrl() commands.
3401 - Removed unused "#if 0"'d code.
3402 - Fixed engine list iteration code so it uses ENGINE_free() to release
3403 structural references.
3404 - Constified the RAND_METHOD element of ENGINE structures.
3405 - Constified various get/set functions as appropriate and added
3406 missing functions (including a catch-all ENGINE_cpy that duplicates
3407 all ENGINE values onto a new ENGINE except reference counts/state).
3408 - Removed NULL parameter checks in get/set functions. Setting a method
3409 or function to NULL is a way of cancelling out a previously set
3410 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3411 and doesn't justify the extra error symbols and code.
3412 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3413 flags from engine_int.h to engine.h.
3414 - Changed prototypes for ENGINE handler functions (init(), finish(),
3415 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3418 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3419 to the algorithm using long division. The binary algorithm can be
3420 used only if the modulus is odd. On 32-bit systems, it is faster
3421 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3422 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3423 up to 450 bits. In 64-bit environments, the binary algorithm
3424 appears to be advantageous for much longer moduli; here we use it
3425 for moduli up to 2048 bits.
3428 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3429 could not support the combine flag in choice fields.
3432 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3433 extensions from a certificate request to the certificate.
3436 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3437 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3438 file: this allows the display of the certificate about to be
3439 signed to be customised, to allow certain fields to be included
3440 or excluded and extension details. The old system didn't display
3441 multicharacter strings properly, omitted fields not in the policy
3442 and couldn't display additional details such as extensions.
3445 *) Function EC_POINTs_mul for multiple scalar multiplication
3446 of an arbitrary number of elliptic curve points
3447 \sum scalars[i]*points[i],
3448 optionally including the generator defined for the EC_GROUP:
3449 scalar*generator + \sum scalars[i]*points[i].
3451 EC_POINT_mul is a simple wrapper function for the typical case
3452 that the point list has just one item (besides the optional
3456 *) First EC_METHODs for curves over GF(p):
3458 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3459 operations and provides various method functions that can also
3460 operate with faster implementations of modular arithmetic.
3462 EC_GFp_mont_method() reuses most functions that are part of
3463 EC_GFp_simple_method, but uses Montgomery arithmetic.
3465 [Bodo Moeller; point addition and point doubling
3466 implementation directly derived from source code provided by
3467 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3469 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3470 crypto/ec/ec_lib.c):
3472 Curves are EC_GROUP objects (with an optional group generator)
3473 based on EC_METHODs that are built into the library.
3475 Points are EC_POINT objects based on EC_GROUP objects.
3477 Most of the framework would be able to handle curves over arbitrary
3478 finite fields, but as there are no obvious types for fields other
3479 than GF(p), some functions are limited to that for now.
3482 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3483 that the file contains a complete HTTP response.
3486 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3487 change the def and num file printf format specifier from "%-40sXXX"
3488 to "%-39s XXX". The latter will always guarantee a space after the
3489 field while the former will cause them to run together if the field
3490 is 40 of more characters long.
3493 *) Constify the cipher and digest 'method' functions and structures
3494 and modify related functions to take constant EVP_MD and EVP_CIPHER
3498 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3499 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3502 *) Modify EVP_Digest*() routines so they now return values. Although the
3503 internal software routines can never fail additional hardware versions
3507 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3509 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3510 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3513 ERR_R_NESTED_ASN1_ERROR
3515 ERR_R_MISSING_ASN1_EOS
3516 were 4 .. 9, conflicting with
3517 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3519 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3520 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3522 Add new error code 'ERR_R_INTERNAL_ERROR'.
3525 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3529 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3530 sets the subject name for a new request or supersedes the
3531 subject name in a given request. Formats that can be parsed are
3532 'CN=Some Name, OU=myOU, C=IT'
3534 'CN=Some Name/OU=myOU/C=IT'.
3536 Add options '-batch' and '-verbose' to 'openssl req'.
3537 [Massimiliano Pala <madwolf@hackmasters.net>]
3539 *) Introduce the possibility to access global variables through
3540 functions on platform were that's the best way to handle exporting
3541 global variables in shared libraries. To enable this functionality,
3542 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3543 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3544 is normally done by Configure or something similar).
3546 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3547 in the source file (foo.c) like this:
3549 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3550 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3552 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3553 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3555 OPENSSL_DECLARE_GLOBAL(int,foo);
3556 #define foo OPENSSL_GLOBAL_REF(foo)
3557 OPENSSL_DECLARE_GLOBAL(double,bar);
3558 #define bar OPENSSL_GLOBAL_REF(bar)
3560 The #defines are very important, and therefore so is including the
3561 header file everywhere where the defined globals are used.
3563 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3564 of ASN.1 items, but that structure is a bit different.
3566 The largest change is in util/mkdef.pl which has been enhanced with
3567 better and easier to understand logic to choose which symbols should
3568 go into the Windows .def files as well as a number of fixes and code
3569 cleanup (among others, algorithm keywords are now sorted
3570 lexicographically to avoid constant rewrites).
3573 *) In BN_div() keep a copy of the sign of 'num' before writing the
3574 result to 'rm' because if rm==num the value will be overwritten
3575 and produce the wrong result if 'num' is negative: this caused
3576 problems with BN_mod() and BN_nnmod().
3579 *) Function OCSP_request_verify(). This checks the signature on an
3580 OCSP request and verifies the signer certificate. The signer
3581 certificate is just checked for a generic purpose and OCSP request
3585 *) Add OCSP_check_validity() function to check the validity of OCSP
3586 responses. OCSP responses are prepared in real time and may only
3587 be a few seconds old. Simply checking that the current time lies
3588 between thisUpdate and nextUpdate max reject otherwise valid responses
3589 caused by either OCSP responder or client clock inaccuracy. Instead
3590 we allow thisUpdate and nextUpdate to fall within a certain period of
3591 the current time. The age of the response can also optionally be
3592 checked. Two new options -validity_period and -status_age added to
3596 *) If signature or public key algorithm is unrecognized print out its
3597 OID rather that just UNKNOWN.
3600 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3601 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3602 ID to be generated from the issuer certificate alone which can then be
3603 passed to OCSP_id_issuer_cmp().
3606 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3607 ASN1 modules to export functions returning ASN1_ITEM pointers
3608 instead of the ASN1_ITEM structures themselves. This adds several
3609 new macros which allow the underlying ASN1 function/structure to
3610 be accessed transparently. As a result code should not use ASN1_ITEM
3611 references directly (such as &X509_it) but instead use the relevant
3612 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3613 use of the new ASN1 code on platforms where exporting structures
3614 is problematical (for example in shared libraries) but exporting
3615 functions returning pointers to structures is not.
3618 *) Add support for overriding the generation of SSL/TLS session IDs.
3619 These callbacks can be registered either in an SSL_CTX or per SSL.
3620 The purpose of this is to allow applications to control, if they wish,
3621 the arbitrary values chosen for use as session IDs, particularly as it
3622 can be useful for session caching in multiple-server environments. A
3623 command-line switch for testing this (and any client code that wishes
3624 to use such a feature) has been added to "s_server".
3625 [Geoff Thorpe, Lutz Jaenicke]
3627 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3628 of the form '#if defined(...) || defined(...) || ...' and
3629 '#if !defined(...) && !defined(...) && ...'. This also avoids
3630 the growing number of special cases it was previously handling.
3633 *) Make all configuration macros available for application by making
3634 sure they are available in opensslconf.h, by giving them names starting
3635 with "OPENSSL_" to avoid conflicts with other packages and by making
3636 sure e_os2.h will cover all platform-specific cases together with
3638 Additionally, it is now possible to define configuration/platform-
3639 specific names (called "system identities"). In the C code, these
3640 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3641 macro with the name beginning with "OPENSSL_SYS_", which is determined
3642 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3646 *) New option -set_serial to 'req' and 'x509' this allows the serial
3647 number to use to be specified on the command line. Previously self
3648 signed certificates were hard coded with serial number 0 and the
3649 CA options of 'x509' had to use a serial number in a file which was
3653 *) New options to 'ca' utility to support V2 CRL entry extensions.
3654 Currently CRL reason, invalidity date and hold instruction are
3655 supported. Add new CRL extensions to V3 code and some new objects.
3658 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3659 disable standard block padding (aka PKCS#5 padding) in the EVP
3660 API, which was previously mandatory. This means that the data is
3661 not padded in any way and so the total length much be a multiple
3662 of the block size, otherwise an error occurs.
3665 *) Initial (incomplete) OCSP SSL support.
3668 *) New function OCSP_parse_url(). This splits up a URL into its host,
3669 port and path components: primarily to parse OCSP URLs. New -url
3670 option to ocsp utility.
3673 *) New nonce behavior. The return value of OCSP_check_nonce() now
3674 reflects the various checks performed. Applications can decide
3675 whether to tolerate certain situations such as an absent nonce
3676 in a response when one was present in a request: the ocsp application
3677 just prints out a warning. New function OCSP_add1_basic_nonce()
3678 this is to allow responders to include a nonce in a response even if
3679 the request is nonce-less.
3682 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3683 skipped when using openssl x509 multiple times on a single input file,
3684 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3687 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3688 set string type: to handle setting ASN1_TIME structures. Fix ca
3689 utility to correctly initialize revocation date of CRLs.
3692 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3693 the clients preferred ciphersuites and rather use its own preferences.
3694 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3695 Internet Explorer by ensuring unchanged hash method during stepup.
3696 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3699 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3700 to aes and add a new 'exist' option to print out symbols that don't
3704 *) Additional options to ocsp utility to allow flags to be set and
3705 additional certificates supplied.
3708 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3709 OCSP client a number of certificate to only verify the response
3713 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3714 handle the new API. Currently only ECB, CBC modes supported. Add new
3717 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3718 Encryption Standard (AES) Ciphersuites for Transport Layer
3719 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3720 not enabled by default and were not part of the "ALL" ciphersuite
3721 alias because they were not yet official; they could be
3722 explicitly requested by specifying the "AESdraft" ciphersuite
3723 group alias. In the final release of OpenSSL 0.9.7, the group
3724 alias is called "AES" and is part of "ALL".)
3725 [Ben Laurie, Steve Henson, Bodo Moeller]
3727 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3728 request to response.
3731 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3732 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3733 extract information from a certificate request. OCSP_response_create()
3734 creates a response and optionally adds a basic response structure.
3735 OCSP_basic_add1_status() adds a complete single response to a basic
3736 response and returns the OCSP_SINGLERESP structure just added (to allow
3737 extensions to be included for example). OCSP_basic_add1_cert() adds a
3738 certificate to a basic response and OCSP_basic_sign() signs a basic
3739 response with various flags. New helper functions ASN1_TIME_check()
3740 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3741 (converts ASN1_TIME to GeneralizedTime).
3744 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3745 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3746 structure from a certificate. X509_pubkey_digest() digests the public_key
3747 contents: this is used in various key identifiers.
3750 *) Make sk_sort() tolerate a NULL argument.
3751 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3753 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3754 passed by the function are trusted implicitly. If any of them signed the
3755 response then it is assumed to be valid and is not verified.
3758 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3759 to data. This was previously part of the PKCS7 ASN1 code. This
3760 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3761 [Steve Henson, reported by Kenneth R. Robinette
3762 <support@securenetterm.com>]
3764 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3765 routines: without these tracing memory leaks is very painful.
3766 Fix leaks in PKCS12 and PKCS7 routines.
3769 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3770 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3771 effectively meant GeneralizedTime would never be used. Now it
3772 is initialised to -1 but X509_time_adj() now has to check the value
3773 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3774 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3775 [Steve Henson, reported by Kenneth R. Robinette
3776 <support@securenetterm.com>]
3778 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3779 result in a zero length in the ASN1_INTEGER structure which was
3780 not consistent with the structure when d2i_ASN1_INTEGER() was used
3781 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3782 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3783 where it did not print out a minus for negative ASN1_INTEGER.
3786 *) Add summary printout to ocsp utility. The various functions which
3787 convert status values to strings have been renamed to:
3788 OCSP_response_status_str(), OCSP_cert_status_str() and
3789 OCSP_crl_reason_str() and are no longer static. New options
3790 to verify nonce values and to disable verification. OCSP response
3791 printout format cleaned up.
3794 *) Add additional OCSP certificate checks. These are those specified
3795 in RFC2560. This consists of two separate checks: the CA of the
3796 certificate being checked must either be the OCSP signer certificate
3797 or the issuer of the OCSP signer certificate. In the latter case the
3798 OCSP signer certificate must contain the OCSP signing extended key
3799 usage. This check is performed by attempting to match the OCSP
3800 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3801 in the OCSP_CERTID structures of the response.
3804 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3805 and related routines. This uses the standard OpenSSL certificate
3806 verify routines to perform initial checks (just CA validity) and
3807 to obtain the certificate chain. Then additional checks will be
3808 performed on the chain. Currently the root CA is checked to see
3809 if it is explicitly trusted for OCSP signing. This is used to set
3810 a root CA as a global signing root: that is any certificate that
3811 chains to that CA is an acceptable OCSP signing certificate.
3814 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3815 extensions from a separate configuration file.
3816 As when reading extensions from the main configuration file,
3817 the '-extensions ...' option may be used for specifying the
3819 [Massimiliano Pala <madwolf@comune.modena.it>]
3821 *) New OCSP utility. Allows OCSP requests to be generated or
3822 read. The request can be sent to a responder and the output
3823 parsed, outputed or printed in text form. Not complete yet:
3824 still needs to check the OCSP response validity.
3827 *) New subcommands for 'openssl ca':
3828 'openssl ca -status <serial>' prints the status of the cert with
3829 the given serial number (according to the index file).
3830 'openssl ca -updatedb' updates the expiry status of certificates
3832 [Massimiliano Pala <madwolf@comune.modena.it>]
3834 *) New '-newreq-nodes' command option to CA.pl. This is like
3835 '-newreq', but calls 'openssl req' with the '-nodes' option
3836 so that the resulting key is not encrypted.
3837 [Damien Miller <djm@mindrot.org>]
3839 *) New configuration for the GNU Hurd.
3840 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3842 *) Initial code to implement OCSP basic response verify. This
3843 is currently incomplete. Currently just finds the signer's
3844 certificate and verifies the signature on the response.
3847 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3848 value of OPENSSLDIR. This is available via the new '-d' option
3849 to 'openssl version', and is also included in 'openssl version -a'.
3852 *) Allowing defining memory allocation callbacks that will be given
3853 file name and line number information in additional arguments
3854 (a const char* and an int). The basic functionality remains, as
3855 well as the original possibility to just replace malloc(),
3856 realloc() and free() by functions that do not know about these
3857 additional arguments. To register and find out the current
3858 settings for extended allocation functions, the following
3859 functions are provided:
3861 CRYPTO_set_mem_ex_functions
3862 CRYPTO_set_locked_mem_ex_functions
3863 CRYPTO_get_mem_ex_functions
3864 CRYPTO_get_locked_mem_ex_functions
3866 These work the same way as CRYPTO_set_mem_functions and friends.
3867 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3868 extended allocation function is enabled.
3869 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3870 a conventional allocation function is enabled.
3871 [Richard Levitte, Bodo Moeller]
3873 *) Finish off removing the remaining LHASH function pointer casts.
3874 There should no longer be any prototype-casting required when using
3875 the LHASH abstraction, and any casts that remain are "bugs". See
3876 the callback types and macros at the head of lhash.h for details
3877 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3880 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3881 If /dev/[u]random devices are not available or do not return enough
3882 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3884 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3885 /etc/entropy will be queried once each in this sequence, quering stops
3886 when enough entropy was collected without querying more sockets.
3889 *) Change the Unix RAND_poll() variant to be able to poll several
3890 random devices, as specified by DEVRANDOM, until a sufficient amount
3891 of data has been collected. We spend at most 10 ms on each file
3892 (select timeout) and read in non-blocking mode. DEVRANDOM now
3893 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3894 (previously it was just the string "/dev/urandom"), so on typical
3895 platforms the 10 ms delay will never occur.
3896 Also separate out the Unix variant to its own file, rand_unix.c.
3897 For VMS, there's a currently-empty rand_vms.c.
3900 *) Move OCSP client related routines to ocsp_cl.c. These
3901 provide utility functions which an application needing
3902 to issue a request to an OCSP responder and analyse the
3903 response will typically need: as opposed to those which an
3904 OCSP responder itself would need which will be added later.
3906 OCSP_request_sign() signs an OCSP request with an API similar
3907 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3908 response. OCSP_response_get1_basic() extracts basic response
3909 from response. OCSP_resp_find_status(): finds and extracts status
3910 information from an OCSP_CERTID structure (which will be created
3911 when the request structure is built). These are built from lower
3912 level functions which work on OCSP_SINGLERESP structures but
3913 wont normally be used unless the application wishes to examine
3914 extensions in the OCSP response for example.
3916 Replace nonce routines with a pair of functions.
3917 OCSP_request_add1_nonce() adds a nonce value and optionally
3918 generates a random value. OCSP_check_nonce() checks the
3919 validity of the nonce in an OCSP response.
3922 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3923 This doesn't copy the supplied OCSP_CERTID and avoids the
3924 need to free up the newly created id. Change return type
3925 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3926 This can then be used to add extensions to the request.
3927 Deleted OCSP_request_new(), since most of its functionality
3928 is now in OCSP_REQUEST_new() (and the case insensitive name
3929 clash) apart from the ability to set the request name which
3930 will be added elsewhere.
3933 *) Update OCSP API. Remove obsolete extensions argument from
3934 various functions. Extensions are now handled using the new
3935 OCSP extension code. New simple OCSP HTTP function which
3936 can be used to send requests and parse the response.
3939 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3940 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3941 uses the special reorder version of SET OF to sort the attributes
3942 and reorder them to match the encoded order. This resolves a long
3943 standing problem: a verify on a PKCS7 structure just after signing
3944 it used to fail because the attribute order did not match the
3945 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3946 it uses the received order. This is necessary to tolerate some broken
3947 software that does not order SET OF. This is handled by encoding
3948 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3949 to produce the required SET OF.
3952 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3953 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3954 files to get correct declarations of the ASN.1 item variables.
3957 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3958 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3959 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3960 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3961 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3962 ASN1_ITEM and no wrapper functions.
3965 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3966 replace the old function pointer based I/O routines. Change most of
3967 the *_d2i_bio() and *_d2i_fp() functions to use these.
3970 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3971 lines, recognice more "algorithms" that can be deselected, and make
3972 it complain about algorithm deselection that isn't recognised.
3975 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3976 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3977 to use new functions. Add NO_ASN1_OLD which can be set to remove
3978 some old style ASN1 functions: this can be used to determine if old
3979 code will still work when these eventually go away.
3982 *) New extension functions for OCSP structures, these follow the
3983 same conventions as certificates and CRLs.
3986 *) New function X509V3_add1_i2d(). This automatically encodes and
3987 adds an extension. Its behaviour can be customised with various
3988 flags to append, replace or delete. Various wrappers added for
3989 certifcates and CRLs.
3992 *) Fix to avoid calling the underlying ASN1 print routine when
3993 an extension cannot be parsed. Correct a typo in the
3994 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3997 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3998 entries for variables.
4001 *) Add functionality to apps/openssl.c for detecting locking
4002 problems: As the program is single-threaded, all we have
4003 to do is register a locking callback using an array for
4004 storing which locks are currently held by the program.
4007 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4008 SSL_get_ex_data_X509_STORE_idx(), which is used in
4009 ssl_verify_cert_chain() and thus can be called at any time
4010 during TLS/SSL handshakes so that thread-safety is essential.
4011 Unfortunately, the ex_data design is not at all suited
4012 for multi-threaded use, so it probably should be abolished.
4015 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4016 [Broadcom, tweaked and integrated by Geoff Thorpe]
4018 *) Move common extension printing code to new function
4019 X509V3_print_extensions(). Reorganise OCSP print routines and
4020 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4023 *) New function X509_signature_print() to remove duplication in some
4027 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4028 set (this was treated exactly the same as SET OF previously). This
4029 is used to reorder the STACK representing the structure to match the
4030 encoding. This will be used to get round a problem where a PKCS7
4031 structure which was signed could not be verified because the STACK
4032 order did not reflect the encoded order.
4035 *) Reimplement the OCSP ASN1 module using the new code.
4038 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4039 for its ASN1 operations. The old style function pointers still exist
4040 for now but they will eventually go away.
4043 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4044 completely replaces the old ASN1 functionality with a table driven
4045 encoder and decoder which interprets an ASN1_ITEM structure describing
4046 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4047 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4048 has also been converted to the new form.
4051 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4052 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4053 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4054 for negative moduli.
4057 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4058 of not touching the result's sign bit.
4061 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4065 *) Changed the LHASH code to use prototypes for callbacks, and created
4066 macros to declare and implement thin (optionally static) functions
4067 that provide type-safety and avoid function pointer casting for the
4068 type-specific callbacks.
4071 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4073 [Veers Staats <staatsvr@asc.hpc.mil>,
4074 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4076 *) Reformat the FAQ so the different questions and answers can be divided
4077 in sections depending on the subject.
4080 *) Have the zlib compression code load ZLIB.DLL dynamically under
4084 *) New function BN_mod_sqrt for computing square roots modulo a prime
4085 (using the probabilistic Tonelli-Shanks algorithm unless
4086 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4087 be handled deterministically).
4088 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4090 *) Make BN_mod_inverse faster by explicitly handling small quotients
4091 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4092 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4095 *) New function BN_kronecker.
4098 *) Fix BN_gcd so that it works on negative inputs; the result is
4099 positive unless both parameters are zero.
4100 Previously something reasonably close to an infinite loop was
4101 possible because numbers could be growing instead of shrinking
4102 in the implementation of Euclid's algorithm.
4105 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4106 sign of the number in question.
4108 Fix BN_is_word(a,w) to work correctly for w == 0.
4110 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4111 because its test if the absolute value of 'a' equals 'w'.
4112 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4113 it exists mostly for use in the implementations of BN_is_zero(),
4114 BN_is_one(), and BN_is_word().
4117 *) New function BN_swap.
4120 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4121 the exponentiation functions are more likely to produce reasonable
4122 results on negative inputs.
4125 *) Change BN_mod_mul so that the result is always non-negative.
4126 Previously, it could be negative if one of the factors was negative;
4127 I don't think anyone really wanted that behaviour.
4130 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4131 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4132 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4133 and add new functions:
4142 BN_mod_lshift1_quick
4146 These functions always generate non-negative results.
4148 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4149 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4151 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4152 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4153 be reduced modulo m.
4154 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4157 The following entry accidentily appeared in the CHANGES file
4158 distributed with OpenSSL 0.9.7. The modifications described in
4159 it do *not* apply to OpenSSL 0.9.7.
4161 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4162 was actually never needed) and in BN_mul(). The removal in BN_mul()
4163 required a small change in bn_mul_part_recursive() and the addition
4164 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4165 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4166 bn_sub_words() and bn_add_words() except they take arrays with
4171 *) In 'openssl passwd', verify passwords read from the terminal
4172 unless the '-salt' option is used (which usually means that
4173 verification would just waste user's time since the resulting
4174 hash is going to be compared with some given password hash)
4175 or the new '-noverify' option is used.
4177 This is an incompatible change, but it does not affect
4178 non-interactive use of 'openssl passwd' (passwords on the command
4179 line, '-stdin' option, '-in ...' option) and thus should not
4183 *) Remove all references to RSAref, since there's no more need for it.
4186 *) Make DSO load along a path given through an environment variable
4187 (SHLIB_PATH) with shl_load().
4190 *) Constify the ENGINE code as a result of BIGNUM constification.
4191 Also constify the RSA code and most things related to it. In a
4192 few places, most notable in the depth of the ASN.1 code, ugly
4193 casts back to non-const were required (to be solved at a later
4197 *) Make it so the openssl application has all engines loaded by default.
4200 *) Constify the BIGNUM routines a little more.
4203 *) Add the following functions:
4205 ENGINE_load_cswift()
4207 ENGINE_load_atalla()
4209 ENGINE_load_builtin_engines()
4211 That way, an application can itself choose if external engines that
4212 are built-in in OpenSSL shall ever be used or not. The benefit is
4213 that applications won't have to be linked with libdl or other dso
4214 libraries unless it's really needed.
4216 Changed 'openssl engine' to load all engines on demand.
4217 Changed the engine header files to avoid the duplication of some
4218 declarations (they differed!).
4221 *) 'openssl engine' can now list capabilities.
4224 *) Better error reporting in 'openssl engine'.
4227 *) Never call load_dh_param(NULL) in s_server.
4230 *) Add engine application. It can currently list engines by name and
4231 identity, and test if they are actually available.
4234 *) Improve RPM specification file by forcing symbolic linking and making
4235 sure the installed documentation is also owned by root.root.
4236 [Damien Miller <djm@mindrot.org>]
4238 *) Give the OpenSSL applications more possibilities to make use of
4239 keys (public as well as private) handled by engines.
4242 *) Add OCSP code that comes from CertCo.
4245 *) Add VMS support for the Rijndael code.
4248 *) Added untested support for Nuron crypto accelerator.
4251 *) Add support for external cryptographic devices. This code was
4252 previously distributed separately as the "engine" branch.
4253 [Geoff Thorpe, Richard Levitte]
4255 *) Rework the filename-translation in the DSO code. It is now possible to
4256 have far greater control over how a "name" is turned into a filename
4257 depending on the operating environment and any oddities about the
4258 different shared library filenames on each system.
4261 *) Support threads on FreeBSD-elf in Configure.
4264 *) Fix for SHA1 assembly problem with MASM: it produces
4265 warnings about corrupt line number information when assembling
4266 with debugging information. This is caused by the overlapping
4268 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4271 NCONF_get_number() has no error checking at all. As a replacement,
4272 NCONF_get_number_e() is defined (_e for "error checking") and is
4273 promoted strongly. The old NCONF_get_number is kept around for
4274 binary backward compatibility.
4275 Make it possible for methods to load from something other than a BIO,
4276 by providing a function pointer that is given a name instead of a BIO.
4277 For example, this could be used to load configuration data from an
4281 *) Fix for non blocking accept BIOs. Added new I/O special reason
4282 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4283 with non blocking I/O was not possible because no retry code was
4284 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4288 *) Added the beginnings of Rijndael support.
4291 *) Fix for bug in DirectoryString mask setting. Add support for
4292 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4293 to allow certificate printing to more controllable, additional
4294 'certopt' option to 'x509' to allow new printing options to be
4298 *) Clean old EAY MD5 hack from e_os.h.
4301 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4303 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4304 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4305 [Joe Orton, Steve Henson]
4307 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4309 *) Fix additional bug revealed by the NISCC test suite:
4311 Stop bug triggering large recursion when presented with
4312 certain ASN.1 tags (CVE-2003-0851)
4315 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4317 *) Fix various bugs revealed by running the NISCC test suite:
4319 Stop out of bounds reads in the ASN1 code when presented with
4320 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4322 If verify callback ignores invalid public key errors don't try to check
4323 certificate signature with the NULL public key.
4327 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4328 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4332 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4333 extra data after the compression methods not only for TLS 1.0
4334 but also for SSL 3.0 (as required by the specification).
4335 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4337 *) Change X509_certificate_type() to mark the key as exported/exportable
4338 when it's 512 *bits* long, not 512 bytes.
4341 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4343 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4344 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4345 a protocol version number mismatch like a decryption error
4346 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4349 *) Turn on RSA blinding by default in the default implementation
4350 to avoid a timing attack. Applications that don't want it can call
4351 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4352 They would be ill-advised to do so in most cases.
4353 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4355 *) Change RSA blinding code so that it works when the PRNG is not
4356 seeded (in this case, the secret RSA exponent is abused as
4357 an unpredictable seed -- if it is not unpredictable, there
4358 is no point in blinding anyway). Make RSA blinding thread-safe
4359 by remembering the creator's thread ID in rsa->blinding and
4360 having all other threads use local one-time blinding factors
4361 (this requires more computation than sharing rsa->blinding, but
4362 avoids excessive locking; and if an RSA object is not shared
4363 between threads, blinding will still be very fast).
4366 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4368 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4369 via timing by performing a MAC computation even if incorrrect
4370 block cipher padding has been found. This is a countermeasure
4371 against active attacks where the attacker has to distinguish
4372 between bad padding and a MAC verification error. (CVE-2003-0078)
4374 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4375 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4376 Martin Vuagnoux (EPFL, Ilion)]
4378 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4380 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4381 memory from it's contents. This is done with a counter that will
4382 place alternating values in each byte. This can be used to solve
4383 two issues: 1) the removal of calls to memset() by highly optimizing
4384 compilers, and 2) cleansing with other values than 0, since those can
4385 be read through on certain media, for example a swap space on disk.
4388 *) Bugfix: client side session caching did not work with external caching,
4389 because the session->cipher setting was not restored when reloading
4390 from the external cache. This problem was masked, when
4391 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4392 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4395 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4396 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4397 [Zeev Lieber <zeev-l@yahoo.com>]
4399 *) Undo an undocumented change introduced in 0.9.6e which caused
4400 repeated calls to OpenSSL_add_all_ciphers() and
4401 OpenSSL_add_all_digests() to be ignored, even after calling
4405 *) Change the default configuration reader to deal with last line not
4406 being properly terminated.
4409 *) Change X509_NAME_cmp() so it applies the special rules on handling
4410 DN values that are of type PrintableString, as well as RDNs of type
4411 emailAddress where the value has the type ia5String.
4412 [stefank@valicert.com via Richard Levitte]
4414 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4415 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4416 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4417 the bitwise-OR of the two for use by the majority of applications
4418 wanting this behaviour, and update the docs. The documented
4419 behaviour and actual behaviour were inconsistent and had been
4420 changing anyway, so this is more a bug-fix than a behavioural
4422 [Geoff Thorpe, diagnosed by Nadav Har'El]
4424 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4425 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4428 *) Fix initialization code race conditions in
4429 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4430 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4431 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4432 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4433 ssl2_get_cipher_by_char(),
4434 ssl3_get_cipher_by_char().
4435 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4437 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4438 the cached sessions are flushed, as the remove_cb() might use ex_data
4439 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4440 (see [openssl.org #212]).
4441 [Geoff Thorpe, Lutz Jaenicke]
4443 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4444 length, instead of the encoding length to d2i_ASN1_OBJECT.
4447 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4449 *) [In 0.9.6g-engine release:]
4450 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4451 [Lynn Gazis <lgazis@rainbow.com>]
4453 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4455 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4456 and get fix the header length calculation.
4457 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4458 Alon Kantor <alonk@checkpoint.com> (and others),
4461 *) Use proper error handling instead of 'assertions' in buffer
4462 overflow checks added in 0.9.6e. This prevents DoS (the
4463 assertions could call abort()).
4464 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4466 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4468 *) Add various sanity checks to asn1_get_length() to reject
4469 the ASN1 length bytes if they exceed sizeof(long), will appear
4470 negative or the content length exceeds the length of the
4472 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4474 *) Fix cipher selection routines: ciphers without encryption had no flags
4475 for the cipher strength set and where therefore not handled correctly
4476 by the selection routines (PR #130).
4479 *) Fix EVP_dsa_sha macro.
4483 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4484 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4485 that was added in OpenSSL 0.9.6d.
4487 As the countermeasure turned out to be incompatible with some
4488 broken SSL implementations, the new option is part of SSL_OP_ALL.
4489 SSL_OP_ALL is usually employed when compatibility with weird SSL
4490 implementations is desired (e.g. '-bugs' option to 's_client' and
4491 's_server'), so the new option is automatically set in many
4495 *) Changes in security patch:
4497 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4498 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4499 Air Force Materiel Command, USAF, under agreement number
4502 *) Add various sanity checks to asn1_get_length() to reject
4503 the ASN1 length bytes if they exceed sizeof(long), will appear
4504 negative or the content length exceeds the length of the
4505 supplied buffer. (CVE-2002-0659)
4506 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4508 *) Assertions for various potential buffer overflows, not known to
4510 [Ben Laurie (CHATS)]
4512 *) Various temporary buffers to hold ASCII versions of integers were
4513 too small for 64 bit platforms. (CVE-2002-0655)
4514 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4516 *) Remote buffer overflow in SSL3 protocol - an attacker could
4517 supply an oversized session ID to a client. (CVE-2002-0656)
4518 [Ben Laurie (CHATS)]
4520 *) Remote buffer overflow in SSL2 protocol - an attacker could
4521 supply an oversized client master key. (CVE-2002-0656)
4522 [Ben Laurie (CHATS)]
4524 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4526 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4527 encoded as NULL) with id-dsa-with-sha1.
4528 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4530 *) Check various X509_...() return values in apps/req.c.
4531 [Nils Larsch <nla@trustcenter.de>]
4533 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4534 an end-of-file condition would erronously be flagged, when the CRLF
4535 was just at the end of a processed block. The bug was discovered when
4536 processing data through a buffering memory BIO handing the data to a
4537 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4538 <ptsekov@syntrex.com> and Nedelcho Stanev.
4541 *) Implement a countermeasure against a vulnerability recently found
4542 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4543 before application data chunks to avoid the use of known IVs
4544 with data potentially chosen by the attacker.
4547 *) Fix length checks in ssl3_get_client_hello().
4550 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4551 to prevent ssl3_read_internal() from incorrectly assuming that
4552 ssl3_read_bytes() found application data while handshake
4553 processing was enabled when in fact s->s3->in_read_app_data was
4554 merely automatically cleared during the initial handshake.
4555 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4557 *) Fix object definitions for Private and Enterprise: they were not
4558 recognized in their shortname (=lowercase) representation. Extend
4559 obj_dat.pl to issue an error when using undefined keywords instead
4560 of silently ignoring the problem (Svenning Sorensen
4561 <sss@sss.dnsalias.net>).
4564 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4565 generators, i.e. generators other than 2 and 5. (Previously, the
4566 code did not properly initialise the 'add' and 'rem' values to
4567 BN_generate_prime().)
4569 In the new general case, we do not insist that 'generator' is
4570 actually a primitive root: This requirement is rather pointless;
4571 a generator of the order-q subgroup is just as good, if not
4575 *) Map new X509 verification errors to alerts. Discovered and submitted by
4576 Tom Wu <tom@arcot.com>.
4579 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4580 returning non-zero before the data has been completely received
4581 when using non-blocking I/O.
4582 [Bodo Moeller; problem pointed out by John Hughes]
4584 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4585 [Ben Laurie, Lutz Jaenicke]
4587 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4588 Yoram Zahavi <YoramZ@gilian.com>).
4591 *) Add information about CygWin 1.3 and on, and preserve proper
4592 configuration for the versions before that.
4593 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4595 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4596 check whether we deal with a copy of a session and do not delete from
4597 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4598 <izhar@checkpoint.com>.
4601 *) Do not store session data into the internal session cache, if it
4602 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4603 flag is set). Proposed by Aslam <aslam@funk.com>.
4606 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4610 *) [In 0.9.6d-engine release:]
4611 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4612 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4614 *) Add the configuration target linux-s390x.
4615 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4617 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4618 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4619 variable as an indication that a ClientHello message has been
4620 received. As the flag value will be lost between multiple
4621 invocations of ssl3_accept when using non-blocking I/O, the
4622 function may not be aware that a handshake has actually taken
4623 place, thus preventing a new session from being added to the
4626 To avoid this problem, we now set s->new_session to 2 instead of
4627 using a local variable.
4628 [Lutz Jaenicke, Bodo Moeller]
4630 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4631 if the SSL_R_LENGTH_MISMATCH error is detected.
4632 [Geoff Thorpe, Bodo Moeller]
4634 *) New 'shared_ldflag' column in Configure platform table.
4637 *) Fix EVP_CIPHER_mode macro.
4638 ["Dan S. Camper" <dan@bti.net>]
4640 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4641 type, we must throw them away by setting rr->length to 0.
4642 [D P Chang <dpc@qualys.com>]
4644 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4646 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4647 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4648 worked incorrectly for those cases where range = 10..._2 and
4649 3*range is two bits longer than range.)
4652 *) Only add signing time to PKCS7 structures if it is not already
4656 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4657 OBJ_ld_ce should be OBJ_id_ce.
4658 Also some ip-pda OIDs in crypto/objects/objects.txt were
4659 incorrect (cf. RFC 3039).
4660 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4662 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4663 returns early because it has nothing to do.
4664 [Andy Schneider <andy.schneider@bjss.co.uk>]
4666 *) [In 0.9.6c-engine release:]
4667 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4668 [Andy Schneider <andy.schneider@bjss.co.uk>]
4670 *) [In 0.9.6c-engine release:]
4671 Add support for Cryptographic Appliance's keyserver technology.
4672 (Use engine 'keyclient')
4673 [Cryptographic Appliances and Geoff Thorpe]
4675 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4676 is called via tools/c89.sh because arguments have to be
4677 rearranged (all '-L' options must appear before the first object
4679 [Richard Shapiro <rshapiro@abinitio.com>]
4681 *) [In 0.9.6c-engine release:]
4682 Add support for Broadcom crypto accelerator cards, backported
4684 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4686 *) [In 0.9.6c-engine release:]
4687 Add support for SureWare crypto accelerator cards from
4688 Baltimore Technologies. (Use engine 'sureware')
4689 [Baltimore Technologies and Mark Cox]
4691 *) [In 0.9.6c-engine release:]
4692 Add support for crypto accelerator cards from Accelerated
4693 Encryption Processing, www.aep.ie. (Use engine 'aep')
4694 [AEP Inc. and Mark Cox]
4696 *) Add a configuration entry for gcc on UnixWare.
4697 [Gary Benson <gbenson@redhat.com>]
4699 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4700 messages are stored in a single piece (fixed-length part and
4701 variable-length part combined) and fix various bugs found on the way.
4704 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4705 instead. BIO_gethostbyname() does not know what timeouts are
4706 appropriate, so entries would stay in cache even when they have
4708 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4710 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4711 faced with a pathologically small ClientHello fragment that does
4712 not contain client_version: Instead of aborting with an error,
4713 simply choose the highest available protocol version (i.e.,
4714 TLS 1.0 unless it is disabled). In practice, ClientHello
4715 messages are never sent like this, but this change gives us
4716 strictly correct behaviour at least for TLS.
4719 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4720 never resets s->method to s->ctx->method when called from within
4721 one of the SSL handshake functions.
4722 [Bodo Moeller; problem pointed out by Niko Baric]
4724 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4725 (sent using the client's version number) if client_version is
4726 smaller than the protocol version in use. Also change
4727 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4728 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4729 the client will at least see that alert.
4732 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4736 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4737 client receives HelloRequest while in a handshake.
4738 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4740 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4741 should end in 'break', not 'goto end' which circuments various
4742 cleanups done in state SSL_ST_OK. But session related stuff
4743 must be disabled for SSL_ST_OK in the case that we just sent a
4746 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4747 before just sending a HelloRequest.
4748 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4750 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4751 reveal whether illegal block cipher padding was found or a MAC
4752 verification error occured. (Neither SSLerr() codes nor alerts
4753 are directly visible to potential attackers, but the information
4754 may leak via logfiles.)
4756 Similar changes are not required for the SSL 2.0 implementation
4757 because the number of padding bytes is sent in clear for SSL 2.0,
4758 and the extra bytes are just ignored. However ssl/s2_pkt.c
4759 failed to verify that the purported number of padding bytes is in
4763 *) Add OpenUNIX-8 support including shared libraries
4764 (Boyd Lynn Gerber <gerberb@zenez.com>).
4767 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4768 'wristwatch attack' using huge encoding parameters (cf.
4769 James H. Manger's CRYPTO 2001 paper). Note that the
4770 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4771 encoding parameters and hence was not vulnerable.
4774 *) BN_sqr() bug fix.
4775 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4777 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4778 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4779 followed by modular reduction.
4780 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4782 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4783 equivalent based on BN_pseudo_rand() instead of BN_rand().
4786 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4787 This function was broken, as the check for a new client hello message
4788 to handle SGC did not allow these large messages.
4789 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4792 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4795 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4796 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4799 *) Rework the configuration and shared library support for Tru64 Unix.
4800 The configuration part makes use of modern compiler features and
4801 still retains old compiler behavior for those that run older versions
4802 of the OS. The shared library support part includes a variant that
4803 uses the RPATH feature, and is available through the special
4804 configuration target "alpha-cc-rpath", which will never be selected
4806 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4808 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4809 with the same message size as in ssl3_get_certificate_request().
4810 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4811 messages might inadvertently be reject as too long.
4812 [Petr Lampa <lampa@fee.vutbr.cz>]
4814 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4817 *) Modified SSL library such that the verify_callback that has been set
4818 specificly for an SSL object with SSL_set_verify() is actually being
4819 used. Before the change, a verify_callback set with this function was
4820 ignored and the verify_callback() set in the SSL_CTX at the time of
4821 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4822 to allow the necessary settings.
4825 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4826 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4827 done automatically (in contradiction to the requirements of the C
4828 standard). This made problems when used from OpenSSH.
4831 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4832 dh->length and always used
4834 BN_rand_range(priv_key, dh->p).
4836 BN_rand_range() is not necessary for Diffie-Hellman, and this
4837 specific range makes Diffie-Hellman unnecessarily inefficient if
4838 dh->length (recommended exponent length) is much smaller than the
4839 length of dh->p. We could use BN_rand_range() if the order of
4840 the subgroup was stored in the DH structure, but we only have
4845 BN_rand(priv_key, l, ...)
4847 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4853 RSA_eay_public_encrypt
4854 RSA_eay_private_decrypt
4855 RSA_eay_private_encrypt (signing)
4856 RSA_eay_public_decrypt (signature verification)
4858 (default implementations for RSA_public_encrypt,
4859 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4860 always reject numbers >= n.
4863 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4864 to synchronize access to 'locking_thread'. This is necessary on
4865 systems where access to 'locking_thread' (an 'unsigned long'
4866 variable) is not atomic.
4869 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4870 *before* setting the 'crypto_lock_rand' flag. The previous code had
4871 a race condition if 0 is a valid thread ID.
4872 [Travis Vitek <vitek@roguewave.com>]
4874 *) Add support for shared libraries under Irix.
4875 [Albert Chin-A-Young <china@thewrittenword.com>]
4877 *) Add configuration option to build on Linux on both big-endian and
4879 [Ralf Baechle <ralf@uni-koblenz.de>]
4881 *) Add the possibility to create shared libraries on HP-UX.
4884 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4886 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4887 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4888 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4889 PRNG state recovery was possible based on the output of
4890 one PRNG request appropriately sized to gain knowledge on
4891 'md' followed by enough consecutive 1-byte PRNG requests
4892 to traverse all of 'state'.
4894 1. When updating 'md_local' (the current thread's copy of 'md')
4895 during PRNG output generation, hash all of the previous
4896 'md_local' value, not just the half used for PRNG output.
4898 2. Make the number of bytes from 'state' included into the hash
4899 independent from the number of PRNG bytes requested.
4901 The first measure alone would be sufficient to avoid
4902 Markku-Juhani's attack. (Actually it had never occurred
4903 to me that the half of 'md_local' used for chaining was the
4904 half from which PRNG output bytes were taken -- I had always
4905 assumed that the secret half would be used.) The second
4906 measure makes sure that additional data from 'state' is never
4907 mixed into 'md_local' in small portions; this heuristically
4908 further strengthens the PRNG.
4911 *) Fix crypto/bn/asm/mips3.s.
4914 *) When only the key is given to "enc", the IV is undefined. Print out
4915 an error message in this case.
4918 *) Handle special case when X509_NAME is empty in X509 printing routines.
4921 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4922 positive and less than q.
4925 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4926 used: it isn't thread safe and the add_lock_callback should handle
4928 [Paul Rose <Paul.Rose@bridge.com>]
4930 *) Verify that incoming data obeys the block size in
4931 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4935 [Ulf Möller, Bodo Möller]
4937 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4938 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4939 when fixing the server behaviour for backwards-compatible 'client
4940 hello' messages. (Note that the attack is impractical against
4941 SSL 3.0 and TLS 1.0 anyway because length and version checking
4942 means that the probability of guessing a valid ciphertext is
4943 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4946 Before 0.9.5, the countermeasure (hide the error by generating a
4947 random 'decryption result') did not work properly because
4948 ERR_clear_error() was missing, meaning that SSL_get_error() would
4949 detect the supposedly ignored error.
4951 Both problems are now fixed.
4954 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4955 (previously it was 1024).
4958 *) Fix for compatibility mode trust settings: ignore trust settings
4959 unless some valid trust or reject settings are present.
4962 *) Fix for blowfish EVP: its a variable length cipher.
4965 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4966 parameters in DSA public key structures and return an error in the
4967 DSA routines if parameters are absent.
4970 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4971 in the current directory if neither $RANDFILE nor $HOME was set.
4972 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4973 caused some confusion to Windows users who haven't defined $HOME.
4974 Thus RAND_file_name() is changed again: e_os.h can define a
4975 DEFAULT_HOME, which will be used if $HOME is not set.
4976 For Windows, we use "C:"; on other platforms, we still require
4977 environment variables.
4979 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4980 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4981 having multiple threads call RAND_poll() concurrently.
4984 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4985 combination of a flag and a thread ID variable.
4986 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4987 flag), *other* threads can enter ssleay_add_bytes without obeying
4988 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4989 that they do not hold after the first thread unsets add_do_not_lock).
4992 *) Change bctest again: '-x' expressions are not available in all
4996 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4998 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4999 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5001 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5002 the default extension for executables, if any. Also, make the perl
5003 scripts that use symlink() to test if it really exists and use "cp"
5004 if it doesn't. All this made OpenSSL compilable and installable in
5008 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5009 If SEQUENCE is length is indefinite just set c->slen to the total
5010 amount of data available.
5011 [Steve Henson, reported by shige@FreeBSD.org]
5012 [This change does not apply to 0.9.7.]
5014 *) Change bctest to avoid here-documents inside command substitution
5015 (workaround for FreeBSD /bin/sh bug).
5016 For compatibility with Ultrix, avoid shell functions (introduced
5017 in the bctest version that searches along $PATH).
5020 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5021 with des_encrypt() defined on some operating systems, like Solaris
5025 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5026 On the Importance of Eliminating Errors in Cryptographic
5027 Computations, J. Cryptology 14 (2001) 2, 101-119,
5028 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5031 *) MIPS assembler BIGNUM division bug fix.
5034 *) Disabled incorrect Alpha assembler code.
5037 *) Fix PKCS#7 decode routines so they correctly update the length
5038 after reading an EOC for the EXPLICIT tag.
5040 [This change does not apply to 0.9.7.]
5042 *) Fix bug in PKCS#12 key generation routines. This was triggered
5043 if a 3DES key was generated with a 0 initial byte. Include
5044 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5045 (but broken) behaviour.
5048 *) Enhance bctest to search for a working bc along $PATH and print
5050 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5052 *) Fix memory leaks in err.c: free err_data string if necessary;
5053 don't write to the wrong index in ERR_set_error_data.
5056 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5060 *) Replace rdtsc with _emit statements for VC++ version 5.
5061 [Jeremy Cooper <jeremy@baymoo.org>]
5063 *) Make it possible to reuse SSLv2 sessions.
5066 *) In copy_email() check for >= 0 as a return value for
5067 X509_NAME_get_index_by_NID() since 0 is a valid index.
5068 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5070 *) Avoid coredump with unsupported or invalid public keys by checking if
5071 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5072 PKCS7_verify() fails with non detached data.
5075 *) Don't use getenv in library functions when run as setuid/setgid.
5076 New function OPENSSL_issetugid().
5079 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5080 due to incorrect handling of multi-threading:
5082 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5084 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5086 3. Count how many times MemCheck_off() has been called so that
5087 nested use can be treated correctly. This also avoids
5088 inband-signalling in the previous code (which relied on the
5089 assumption that thread ID 0 is impossible).
5092 *) Add "-rand" option also to s_client and s_server.
5095 *) Fix CPU detection on Irix 6.x.
5096 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5097 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5099 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5102 [This change does not apply to 0.9.7.]
5104 *) Use the cached encoding of an X509_NAME structure rather than
5105 copying it. This is apparently the reason for the libsafe "errors"
5106 but the code is actually correct.
5109 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5110 Bleichenbacher's DSA attack.
5111 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5112 to be set and top=0 forces the highest bit to be set; top=-1 is new
5113 and leaves the highest bit random.
5114 [Ulf Moeller, Bodo Moeller]
5116 *) In the NCONF_...-based implementations for CONF_... queries
5117 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5118 a temporary CONF structure with the data component set to NULL
5119 (which gives segmentation faults in lh_retrieve).
5120 Instead, use NULL for the CONF pointer in CONF_get_string and
5121 CONF_get_number (which may use environment variables) and directly
5122 return NULL from CONF_get_section.
5125 *) Fix potential buffer overrun for EBCDIC.
5128 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5129 keyUsage if basicConstraints absent for a CA.
5132 *) Make SMIME_write_PKCS7() write mail header values with a format that
5133 is more generally accepted (no spaces before the semicolon), since
5134 some programs can't parse those values properly otherwise. Also make
5135 sure BIO's that break lines after each write do not create invalid
5139 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5140 macros previously used would not encode an empty SEQUENCE OF
5141 and break the signature.
5143 [This change does not apply to 0.9.7.]
5145 *) Zero the premaster secret after deriving the master secret in
5149 *) Add some EVP_add_digest_alias registrations (as found in
5150 OpenSSL_add_all_digests()) to SSL_library_init()
5151 aka OpenSSL_add_ssl_algorithms(). This provides improved
5152 compatibility with peers using X.509 certificates
5153 with unconventional AlgorithmIdentifier OIDs.
5156 *) Fix for Irix with NO_ASM.
5157 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5159 *) ./config script fixes.
5160 [Ulf Moeller, Richard Levitte]
5162 *) Fix 'openssl passwd -1'.
5165 *) Change PKCS12_key_gen_asc() so it can cope with non null
5166 terminated strings whose length is passed in the passlen
5167 parameter, for example from PEM callbacks. This was done
5168 by adding an extra length parameter to asc2uni().
5169 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5171 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5172 call failed, free the DSA structure.
5175 *) Fix to uni2asc() to cope with zero length Unicode strings.
5176 These are present in some PKCS#12 files.
5179 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5180 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5181 when writing a 32767 byte record.
5182 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5184 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5185 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5187 (RSA objects have a reference count access to which is protected
5188 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5189 so they are meant to be shared between threads.)
5190 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5191 "Reddie, Steven" <Steven.Reddie@ca.com>]
5193 *) Fix a deadlock in CRYPTO_mem_leaks().
5196 *) Use better test patterns in bntest.
5199 *) rand_win.c fix for Borland C.
5202 *) BN_rshift bugfix for n == 0.
5205 *) Add a 'bctest' script that checks for some known 'bc' bugs
5206 so that 'make test' does not abort just because 'bc' is broken.
5209 *) Store verify_result within SSL_SESSION also for client side to
5210 avoid potential security hole. (Re-used sessions on the client side
5211 always resulted in verify_result==X509_V_OK, not using the original
5212 result of the server certificate verification.)
5215 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5216 SSL3_RT_APPLICATION_DATA, return 0.
5217 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5221 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5222 releases, have been re-implemented by renaming the previous
5223 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5224 and ssl3_read_internal, respectively, and adding 'peek' parameters
5225 to them. The new ssl[23]_{read,peek} functions are calls to
5226 ssl[23]_read_internal with the 'peek' flag set appropriately.
5227 A 'peek' parameter has also been added to ssl3_read_bytes, which
5228 does the actual work for ssl3_read_internal.
5231 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5232 the method-specific "init()" handler. Also clean up ex_data after
5233 calling the method-specific "finish()" handler. Previously, this was
5234 happening the other way round.
5237 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5238 The previous value, 12, was not always sufficient for BN_mod_exp().
5241 *) Make sure that shared libraries get the internal name engine with
5242 the full version number and not just 0. This should mark the
5243 shared libraries as not backward compatible. Of course, this should
5244 be changed again when we can guarantee backward binary compatibility.
5247 *) Fix typo in get_cert_by_subject() in by_dir.c
5248 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5250 *) Rework the system to generate shared libraries:
5252 - Make note of the expected extension for the shared libraries and
5253 if there is a need for symbolic links from for example libcrypto.so.0
5254 to libcrypto.so.0.9.7. There is extended info in Configure for
5257 - Make as few rebuilds of the shared libraries as possible.
5259 - Still avoid linking the OpenSSL programs with the shared libraries.
5261 - When installing, install the shared libraries separately from the
5265 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5267 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5268 and not in SSL_clear because the latter is also used by the
5269 accept/connect functions; previously, the settings made by
5270 SSL_set_read_ahead would be lost during the handshake.
5271 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5273 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5274 Previously, it would create entries for disableed algorithms no
5278 *) Added several new manual pages for SSL_* function.
5281 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5283 *) In ssl23_get_client_hello, generate an error message when faced
5284 with an initial SSL 3.0/TLS record that is too small to contain the
5285 first two bytes of the ClientHello message, i.e. client_version.
5286 (Note that this is a pathologic case that probably has never happened
5287 in real life.) The previous approach was to use the version number
5288 from the record header as a substitute; but our protocol choice
5289 should not depend on that one because it is not authenticated
5290 by the Finished messages.
5293 *) More robust randomness gathering functions for Windows.
5294 [Jeffrey Altman <jaltman@columbia.edu>]
5296 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5297 not set then we don't setup the error code for issuer check errors
5298 to avoid possibly overwriting other errors which the callback does
5299 handle. If an application does set the flag then we assume it knows
5300 what it is doing and can handle the new informational codes
5304 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5305 a general "ANY" type, as such it should be able to decode anything
5306 including tagged types. However it didn't check the class so it would
5307 wrongly interpret tagged types in the same way as their universal
5308 counterpart and unknown types were just rejected. Changed so that the
5309 tagged and unknown types are handled in the same way as a SEQUENCE:
5310 that is the encoding is stored intact. There is also a new type
5311 "V_ASN1_OTHER" which is used when the class is not universal, in this
5312 case we have no idea what the actual type is so we just lump them all
5316 *) On VMS, stdout may very well lead to a file that is written to
5317 in a record-oriented fashion. That means that every write() will
5318 write a separate record, which will be read separately by the
5319 programs trying to read from it. This can be very confusing.
5321 The solution is to put a BIO filter in the way that will buffer
5322 text until a linefeed is reached, and then write everything a
5323 line at a time, so every record written will be an actual line,
5324 not chunks of lines and not (usually doesn't happen, but I've
5325 seen it once) several lines in one record. BIO_f_linebuffer() is
5328 Currently, it's a VMS-only method, because that's where it has
5329 been tested well enough.
5332 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5333 it can return incorrect results.
5334 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5335 but it was in 0.9.6-beta[12].)
5338 *) Disable the check for content being present when verifying detached
5339 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5340 include zero length content when signing messages.
5343 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5344 BIO_ctrl (for BIO pairs).
5347 *) Add DSO method for VMS.
5350 *) Bug fix: Montgomery multiplication could produce results with the
5354 *) Add RPM specification openssl.spec and modify it to build three
5355 packages. The default package contains applications, application
5356 documentation and run-time libraries. The devel package contains
5357 include files, static libraries and function documentation. The
5358 doc package contains the contents of the doc directory. The original
5359 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5362 *) Add a large number of documentation files for many SSL routines.
5363 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5365 *) Add a configuration entry for Sony News 4.
5366 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5368 *) Don't set the two most significant bits to one when generating a
5369 random number < q in the DSA library.
5372 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5373 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5374 the underlying transport is blocking) if a handshake took place.
5375 (The default behaviour is needed by applications such as s_client
5376 and s_server that use select() to determine when to use SSL_read;
5377 but for applications that know in advance when to expect data, it
5378 just makes things more complicated.)
5381 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5385 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5386 work better on such systems.
5387 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5389 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5390 Update PKCS12_parse() so it copies the friendlyName and the
5391 keyid to the certificates aux info.
5394 *) Fix bug in PKCS7_verify() which caused an infinite loop
5395 if there was more than one signature.
5396 [Sven Uszpelkat <su@celocom.de>]
5398 *) Major change in util/mkdef.pl to include extra information
5399 about each symbol, as well as presentig variables as well
5400 as functions. This change means that there's n more need
5401 to rebuild the .num files when some algorithms are excluded.
5404 *) Allow the verify time to be set by an application,
5405 rather than always using the current time.
5408 *) Phase 2 verify code reorganisation. The certificate
5409 verify code now looks up an issuer certificate by a
5410 number of criteria: subject name, authority key id
5411 and key usage. It also verifies self signed certificates
5412 by the same criteria. The main comparison function is
5413 X509_check_issued() which performs these checks.
5415 Lot of changes were necessary in order to support this
5416 without completely rewriting the lookup code.
5418 Authority and subject key identifier are now cached.
5420 The LHASH 'certs' is X509_STORE has now been replaced
5421 by a STACK_OF(X509_OBJECT). This is mainly because an
5422 LHASH can't store or retrieve multiple objects with
5423 the same hash value.
5425 As a result various functions (which were all internal
5426 use only) have changed to handle the new X509_STORE
5427 structure. This will break anything that messed round
5428 with X509_STORE internally.
5430 The functions X509_STORE_add_cert() now checks for an
5431 exact match, rather than just subject name.
5433 The X509_STORE API doesn't directly support the retrieval
5434 of multiple certificates matching a given criteria, however
5435 this can be worked round by performing a lookup first
5436 (which will fill the cache with candidate certificates)
5437 and then examining the cache for matches. This is probably
5438 the best we can do without throwing out X509_LOOKUP
5439 entirely (maybe later...).
5441 The X509_VERIFY_CTX structure has been enhanced considerably.
5443 All certificate lookup operations now go via a get_issuer()
5444 callback. Although this currently uses an X509_STORE it
5445 can be replaced by custom lookups. This is a simple way
5446 to bypass the X509_STORE hackery necessary to make this
5447 work and makes it possible to use more efficient techniques
5448 in future. A very simple version which uses a simple
5449 STACK for its trusted certificate store is also provided
5450 using X509_STORE_CTX_trusted_stack().
5452 The verify_cb() and verify() callbacks now have equivalents
5453 in the X509_STORE_CTX structure.
5455 X509_STORE_CTX also has a 'flags' field which can be used
5456 to customise the verify behaviour.
5459 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5460 excludes S/MIME capabilities.
5463 *) When a certificate request is read in keep a copy of the
5464 original encoding of the signed data and use it when outputing
5465 again. Signatures then use the original encoding rather than
5466 a decoded, encoded version which may cause problems if the
5467 request is improperly encoded.
5470 *) For consistency with other BIO_puts implementations, call
5471 buffer_write(b, ...) directly in buffer_puts instead of calling
5474 In BIO_puts, increment b->num_write as in BIO_write.
5475 [Peter.Sylvester@EdelWeb.fr]
5477 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5478 BN_zero, we may not return a BIGNUM with an array consisting of
5482 *) Avoid calling abort() from within the library when problems are
5483 detected, except if preprocessor symbols have been defined
5484 (such as REF_CHECK, BN_DEBUG etc.).
5487 *) New openssl application 'rsautl'. This utility can be
5488 used for low level RSA operations. DER public key
5489 BIO/fp routines also added.
5492 *) New Configure entry and patches for compiling on QNX 4.
5493 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5495 *) A demo state-machine implementation was sponsored by
5496 Nuron (http://www.nuron.com/) and is now available in
5497 demos/state_machine.
5500 *) New options added to the 'dgst' utility for signature
5501 generation and verification.
5504 *) Unrecognized PKCS#7 content types are now handled via a
5505 catch all ASN1_TYPE structure. This allows unsupported
5506 types to be stored as a "blob" and an application can
5507 encode and decode it manually.
5510 *) Fix various signed/unsigned issues to make a_strex.c
5512 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5514 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5515 length if passed a buffer. ASN1_INTEGER_to_BN failed
5516 if passed a NULL BN and its argument was negative.
5517 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5519 *) Modification to PKCS#7 encoding routines to output definite
5520 length encoding. Since currently the whole structures are in
5521 memory there's not real point in using indefinite length
5522 constructed encoding. However if OpenSSL is compiled with
5523 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5526 *) Added BIO_vprintf() and BIO_vsnprintf().
5529 *) Added more prefixes to parse for in the the strings written
5530 through a logging bio, to cover all the levels that are available
5531 through syslog. The prefixes are now:
5533 PANIC, EMERG, EMR => LOG_EMERG
5534 ALERT, ALR => LOG_ALERT
5535 CRIT, CRI => LOG_CRIT
5536 ERROR, ERR => LOG_ERR
5537 WARNING, WARN, WAR => LOG_WARNING
5538 NOTICE, NOTE, NOT => LOG_NOTICE
5539 INFO, INF => LOG_INFO
5540 DEBUG, DBG => LOG_DEBUG
5542 and as before, if none of those prefixes are present at the
5543 beginning of the string, LOG_ERR is chosen.
5545 On Win32, the LOG_* levels are mapped according to this:
5547 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5548 LOG_WARNING => EVENTLOG_WARNING_TYPE
5549 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5553 *) Made it possible to reconfigure with just the configuration
5554 argument "reconf" or "reconfigure". The command line arguments
5555 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5556 and are retrieved from there when reconfiguring.
5560 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5562 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5565 *) The obj_dat.pl script was messing up the sorting of object
5566 names. The reason was that it compared the quoted version
5567 of strings as a result "OCSP" > "OCSP Signing" because
5568 " > SPACE. Changed script to store unquoted versions of
5569 names and add quotes on output. It was also omitting some
5570 names from the lookup table if they were given a default
5571 value (that is if SN is missing it is given the same
5572 value as LN and vice versa), these are now added on the
5573 grounds that if an object has a name we should be able to
5574 look it up. Finally added warning output when duplicate
5575 short or long names are found.
5578 *) Changes needed for Tandem NSK.
5579 [Scott Uroff <scott@xypro.com>]
5581 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5582 RSA_padding_check_SSLv23(), special padding was never detected
5583 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5584 version rollback attacks was not effective.
5586 In s23_clnt.c, don't use special rollback-attack detection padding
5587 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5588 client; similarly, in s23_srvr.c, don't do the rollback check if
5589 SSL 2.0 is the only protocol enabled in the server.
5592 *) Make it possible to get hexdumps of unprintable data with 'openssl
5593 asn1parse'. By implication, the functions ASN1_parse_dump() and
5594 BIO_dump_indent() are added.
5597 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5598 these print out strings and name structures based on various
5599 flags including RFC2253 support and proper handling of
5600 multibyte characters. Added options to the 'x509' utility
5601 to allow the various flags to be set.
5604 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5605 Also change the functions X509_cmp_current_time() and
5606 X509_gmtime_adj() work with an ASN1_TIME structure,
5607 this will enable certificates using GeneralizedTime in validity
5608 dates to be checked.
5611 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5612 negative public key encodings) on by default,
5613 NO_NEG_PUBKEY_BUG can be set to disable it.
5616 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5617 content octets. An i2c_ASN1_OBJECT is unnecessary because
5618 the encoding can be trivially obtained from the structure.
5621 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5622 not read locks (CRYPTO_r_[un]lock).
5625 *) A first attempt at creating official support for shared
5626 libraries through configuration. I've kept it so the
5627 default is static libraries only, and the OpenSSL programs
5628 are always statically linked for now, but there are
5629 preparations for dynamic linking in place.
5630 This has been tested on Linux and Tru64.
5633 *) Randomness polling function for Win9x, as described in:
5634 Peter Gutmann, Software Generation of Practically Strong
5638 *) Fix so PRNG is seeded in req if using an already existing
5642 *) New options to smime application. -inform and -outform
5643 allow alternative formats for the S/MIME message including
5644 PEM and DER. The -content option allows the content to be
5645 specified separately. This should allow things like Netscape
5646 form signing output easier to verify.
5649 *) Fix the ASN1 encoding of tags using the 'long form'.
5652 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5653 STRING types. These convert content octets to and from the
5654 underlying type. The actual tag and length octets are
5655 already assumed to have been read in and checked. These
5656 are needed because all other string types have virtually
5657 identical handling apart from the tag. By having versions
5658 of the ASN1 functions that just operate on content octets
5659 IMPLICIT tagging can be handled properly. It also allows
5660 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5661 and ASN1_INTEGER are identical apart from the tag.
5664 *) Change the handling of OID objects as follows:
5666 - New object identifiers are inserted in objects.txt, following
5667 the syntax given in objects.README.
5668 - objects.pl is used to process obj_mac.num and create a new
5670 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5673 This is currently kind of a hack, and the perl code in objects.pl
5674 isn't very elegant, but it works as I intended. The simplest way
5675 to check that it worked correctly is to look in obj_dat.h and
5676 check the array nid_objs and make sure the objects haven't moved
5677 around (this is important!). Additions are OK, as well as
5678 consistent name changes.
5681 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5684 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5685 The given file adds to whatever has already been seeded into the
5686 random pool through the RANDFILE configuration file option or
5687 environment variable, or the default random state file.
5690 *) mkstack.pl now sorts each macro group into lexical order.
5691 Previously the output order depended on the order the files
5692 appeared in the directory, resulting in needless rewriting
5696 *) Patches to make OpenSSL compile under Win32 again. Mostly
5697 work arounds for the VC++ problem that it treats func() as
5698 func(void). Also stripped out the parts of mkdef.pl that
5699 added extra typesafe functions: these no longer exist.
5702 *) Reorganisation of the stack code. The macros are now all
5703 collected in safestack.h . Each macro is defined in terms of
5704 a "stack macro" of the form SKM_<name>(type, a, b). The
5705 DEBUG_SAFESTACK is now handled in terms of function casts,
5706 this has the advantage of retaining type safety without the
5707 use of additional functions. If DEBUG_SAFESTACK is not defined
5708 then the non typesafe macros are used instead. Also modified the
5709 mkstack.pl script to handle the new form. Needs testing to see
5710 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5711 the default if no major problems. Similar behaviour for ASN1_SET_OF
5712 and PKCS12_STACK_OF.
5715 *) When some versions of IIS use the 'NET' form of private key the
5716 key derivation algorithm is different. Normally MD5(password) is
5717 used as a 128 bit RC4 key. In the modified case
5718 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5719 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5720 as the old Netscape_RSA functions except they have an additional
5721 'sgckey' parameter which uses the modified algorithm. Also added
5722 an -sgckey command line option to the rsa utility. Thanks to
5723 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5724 algorithm to openssl-dev.
5727 *) The evp_local.h macros were using 'c.##kname' which resulted in
5728 invalid expansion on some systems (SCO 5.0.5 for example).
5729 Corrected to 'c.kname'.
5730 [Phillip Porch <root@theporch.com>]
5732 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5733 a STACK of email addresses from a certificate or request, these look
5734 in the subject name and the subject alternative name extensions and
5735 omit any duplicate addresses.
5738 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5739 This makes DSA verification about 2 % faster.
5742 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5743 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5744 plus overhead for 1024 bit moduli).
5745 This makes exponentiations about 0.5 % faster for 1024 bit
5746 exponents (as measured by "openssl speed rsa2048").
5749 *) Rename memory handling macros to avoid conflicts with other
5751 Malloc => OPENSSL_malloc
5752 Malloc_locked => OPENSSL_malloc_locked
5753 Realloc => OPENSSL_realloc
5754 Free => OPENSSL_free
5757 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5758 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5761 *) CygWin32 support.
5762 [John Jarvie <jjarvie@newsguy.com>]
5764 *) The type-safe stack code has been rejigged. It is now only compiled
5765 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5766 by default all type-specific stack functions are "#define"d back to
5767 standard stack functions. This results in more streamlined output
5768 but retains the type-safety checking possibilities of the original
5772 *) The STACK code has been cleaned up, and certain type declarations
5773 that didn't make a lot of sense have been brought in line. This has
5774 also involved a cleanup of sorts in safestack.h to more correctly
5775 map type-safe stack functions onto their plain stack counterparts.
5776 This work has also resulted in a variety of "const"ifications of
5777 lots of the code, especially "_cmp" operations which should normally
5778 be prototyped with "const" parameters anyway.
5781 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5782 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5783 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5784 where all of 'md' is used each time the PRNG is used, but 'state'
5785 is used only indexed by a cyclic counter. As entropy may not be
5786 well distributed from the beginning, 'md' is important as a
5787 chaining variable. However, the output function chains only half
5788 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5789 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5790 in all of 'state' being rewritten, with the new values depending
5791 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5794 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5795 the handshake is continued after ssl_verify_cert_chain();
5796 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5797 can lead to 'unexplainable' connection aborts later.
5798 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5800 *) Major EVP API cipher revision.
5801 Add hooks for extra EVP features. This allows various cipher
5802 parameters to be set in the EVP interface. Support added for variable
5803 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5804 setting of RC2 and RC5 parameters.
5806 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5809 Remove lots of duplicated code from the EVP library. For example *every*
5810 cipher init() function handles the 'iv' in the same way according to the
5811 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5812 for CFB and OFB modes they zero ctx->num.
5814 New functionality allows removal of S/MIME code RC2 hack.
5816 Most of the routines have the same form and so can be declared in terms
5819 By shifting this to the top level EVP_CipherInit() it can be removed from
5820 all individual ciphers. If the cipher wants to handle IVs or keys
5821 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5824 Change lots of functions like EVP_EncryptUpdate() to now return a
5825 value: although software versions of the algorithms cannot fail
5826 any installed hardware versions can.
5829 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5830 this option is set, tolerate broken clients that send the negotiated
5831 protocol version number instead of the requested protocol version
5835 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5836 i.e. non-zero for export ciphersuites, zero otherwise.
5837 Previous versions had this flag inverted, inconsistent with
5838 rsa_tmp_cb (..._TMP_RSA_CB).
5839 [Bodo Moeller; problem reported by Amit Chopra]
5841 *) Add missing DSA library text string. Work around for some IIS
5842 key files with invalid SEQUENCE encoding.
5845 *) Add a document (doc/standards.txt) that list all kinds of standards
5846 and so on that are implemented in OpenSSL.
5849 *) Enhance c_rehash script. Old version would mishandle certificates
5850 with the same subject name hash and wouldn't handle CRLs at all.
5851 Added -fingerprint option to crl utility, to support new c_rehash
5855 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5858 *) Fix for SSL server purpose checking. Server checking was
5859 rejecting certificates which had extended key usage present
5860 but no ssl client purpose.
5861 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5863 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5864 is a little unclear about how a blank password is handled.
5865 Since the password in encoded as a BMPString with terminating
5866 double NULL a zero length password would end up as just the
5867 double NULL. However no password at all is different and is
5868 handled differently in the PKCS#12 key generation code. NS
5869 treats a blank password as zero length. MSIE treats it as no
5870 password on export: but it will try both on import. We now do
5871 the same: PKCS12_parse() tries zero length and no password if
5872 the password is set to "" or NULL (NULL is now a valid password:
5873 it wasn't before) as does the pkcs12 application.
5876 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5877 perror when PEM_read_bio_X509_REQ fails, the error message must
5878 be obtained from the error queue.
5881 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5882 it in ERR_remove_state if appropriate, and change ERR_get_state
5883 accordingly to avoid race conditions (this is necessary because
5884 thread_hash is no longer constant once set).
5887 *) Bugfix for linux-elf makefile.one.
5890 *) RSA_get_default_method() will now cause a default
5891 RSA_METHOD to be chosen if one doesn't exist already.
5892 Previously this was only set during a call to RSA_new()
5893 or RSA_new_method(NULL) meaning it was possible for
5894 RSA_get_default_method() to return NULL.
5897 *) Added native name translation to the existing DSO code
5898 that will convert (if the flag to do so is set) filenames
5899 that are sufficiently small and have no path information
5900 into a canonical native form. Eg. "blah" converted to
5901 "libblah.so" or "blah.dll" etc.
5904 *) New function ERR_error_string_n(e, buf, len) which is like
5905 ERR_error_string(e, buf), but writes at most 'len' bytes
5906 including the 0 terminator. For ERR_error_string_n, 'buf'
5908 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5910 *) CONF library reworked to become more general. A new CONF
5911 configuration file reader "class" is implemented as well as a
5912 new functions (NCONF_*, for "New CONF") to handle it. The now
5913 old CONF_* functions are still there, but are reimplemented to
5914 work in terms of the new functions. Also, a set of functions
5915 to handle the internal storage of the configuration data is
5916 provided to make it easier to write new configuration file
5917 reader "classes" (I can definitely see something reading a
5918 configuration file in XML format, for example), called _CONF_*,
5919 or "the configuration storage API"...
5921 The new configuration file reading functions are:
5923 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5924 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5926 NCONF_default, NCONF_WIN32
5928 NCONF_dump_fp, NCONF_dump_bio
5930 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5931 NCONF_new creates a new CONF object. This works in the same way
5932 as other interfaces in OpenSSL, like the BIO interface.
5933 NCONF_dump_* dump the internal storage of the configuration file,
5934 which is useful for debugging. All other functions take the same
5935 arguments as the old CONF_* functions wth the exception of the
5936 first that must be a `CONF *' instead of a `LHASH *'.
5938 To make it easer to use the new classes with the old CONF_* functions,
5939 the function CONF_set_default_method is provided.
5942 *) Add '-tls1' option to 'openssl ciphers', which was already
5943 mentioned in the documentation but had not been implemented.
5944 (This option is not yet really useful because even the additional
5945 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5948 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5949 OpenSSL-based applications) load shared libraries and bind to
5950 them in a portable way.
5951 [Geoff Thorpe, with contributions from Richard Levitte]
5953 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5955 *) Make sure _lrotl and _lrotr are only used with MSVC.
5957 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5958 (the default implementation of RAND_status).
5960 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5961 to '-clrext' (= clear extensions), as intended and documented.
5962 [Bodo Moeller; inconsistency pointed out by Michael Attili
5965 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5966 was larger than the MD block size.
5967 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5969 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5970 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5971 using the passed key: if the passed key was a private key the result
5972 of X509_print(), for example, would be to print out all the private key
5976 *) des_quad_cksum() byte order bug fix.
5977 [Ulf Möller, using the problem description in krb4-0.9.7, where
5978 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5980 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5982 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5984 *) For easily testing in shell scripts whether some command
5985 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5986 returns with exit code 0 iff no command of the given name is available.
5987 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5988 the output goes to stdout and nothing is printed to stderr.
5989 Additional arguments are always ignored.
5991 Since for each cipher there is a command of the same name,
5992 the 'no-cipher' compilation switches can be tested this way.
5994 ('openssl no-XXX' is not able to detect pseudo-commands such
5995 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5998 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6001 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6002 is set; it will be thrown away anyway because each handshake creates
6004 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6005 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6006 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6007 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6010 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6011 'Q' and 'R' lose their special meanings (quit/renegotiate).
6012 This is part of what -quiet does; unlike -quiet, -ign_eof
6013 does not suppress any output.
6016 *) Add compatibility options to the purpose and trust code. The
6017 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6018 accepts a certificate or CA, this was the previous behaviour,
6019 with all the associated security issues.
6021 X509_TRUST_COMPAT is the old trust behaviour: only and
6022 automatically trust self signed roots in certificate store. A
6023 new trust setting X509_TRUST_DEFAULT is used to specify that
6024 a purpose has no associated trust setting and it should instead
6025 use the value in the default purpose.
6028 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6029 and fix a memory leak.
6032 *) In util/mkerr.pl (which implements 'make errors'), preserve
6033 reason strings from the previous version of the .c file, as
6034 the default to have only downcase letters (and digits) in
6035 automatically generated reasons codes is not always appropriate.
6038 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6039 using strerror. Previously, ERR_reason_error_string() returned
6040 library names as reason strings for SYSerr; but SYSerr is a special
6041 case where small numbers are errno values, not library numbers.
6044 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6045 converts DSA parameters into DH parameters. (When creating parameters,
6046 DSA_generate_parameters is used.)
6049 *) Include 'length' (recommended exponent length) in C code generated
6050 by 'openssl dhparam -C'.
6053 *) The second argument to set_label in perlasm was already being used
6054 so couldn't be used as a "file scope" flag. Moved to third argument
6058 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6059 instead of RAND_bytes for encryption IVs and salts.
6062 *) Include RAND_status() into RAND_METHOD instead of implementing
6063 it only for md_rand.c Otherwise replacing the PRNG by calling
6064 RAND_set_rand_method would be impossible.
6067 *) Don't let DSA_generate_key() enter an infinite loop if the random
6068 number generation fails.
6071 *) New 'rand' application for creating pseudo-random output.
6074 *) Added configuration support for Linux/IA64
6075 [Rolf Haberrecker <rolf@suse.de>]
6077 *) Assembler module support for Mingw32.
6080 *) Shared library support for HPUX (in shlib/).
6081 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6083 *) Shared library support for Solaris gcc.
6084 [Lutz Behnke <behnke@trustcenter.de>]
6086 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6088 *) PKCS7_encrypt() was adding text MIME headers twice because they
6089 were added manually and by SMIME_crlf_copy().
6092 *) In bntest.c don't call BN_rand with zero bits argument.
6093 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6095 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6096 case was implemented. This caused BN_div_recp() to fail occasionally.
6099 *) Add an optional second argument to the set_label() in the perl
6100 assembly language builder. If this argument exists and is set
6101 to 1 it signals that the assembler should use a symbol whose
6102 scope is the entire file, not just the current function. This
6103 is needed with MASM which uses the format label:: for this scope.
6104 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6106 *) Change the ASN1 types so they are typedefs by default. Before
6107 almost all types were #define'd to ASN1_STRING which was causing
6108 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6112 *) Change names of new functions to the new get1/get0 naming
6113 convention: After 'get1', the caller owns a reference count
6114 and has to call ..._free; 'get0' returns a pointer to some
6115 data structure without incrementing reference counters.
6116 (Some of the existing 'get' functions increment a reference
6117 counter, some don't.)
6118 Similarly, 'set1' and 'add1' functions increase reference
6119 counters or duplicate objects.
6122 *) Allow for the possibility of temp RSA key generation failure:
6123 the code used to assume it always worked and crashed on failure.
6126 *) Fix potential buffer overrun problem in BIO_printf().
6127 [Ulf Möller, using public domain code by Patrick Powell; problem
6128 pointed out by David Sacerdote <das33@cornell.edu>]
6130 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6131 RAND_egd() and RAND_status(). In the command line application,
6132 the EGD socket can be specified like a seed file using RANDFILE
6136 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6137 Some CAs (e.g. Verisign) distribute certificates in this form.
6140 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6141 list to exclude them. This means that no special compilation option
6142 is needed to use anonymous DH: it just needs to be included in the
6146 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6147 EVP_MD_type. The old functionality is available in a new macro called
6148 EVP_MD_md(). Change code that uses it and update docs.
6151 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6152 where the 'void *' argument is replaced by a function pointer argument.
6153 Previously 'void *' was abused to point to functions, which works on
6154 many platforms, but is not correct. As these functions are usually
6155 called by macros defined in OpenSSL header files, most source code
6156 should work without changes.
6159 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6160 sections with information on -D... compiler switches used for
6161 compiling the library so that applications can see them. To enable
6162 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6163 must be defined. E.g.,
6164 #define OPENSSL_ALGORITHM_DEFINES
6165 #include <openssl/opensslconf.h>
6166 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6167 [Richard Levitte, Ulf and Bodo Möller]
6169 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6173 *) Change the 'other' type in certificate aux info to a STACK_OF
6174 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6175 the required ASN1 format: arbitrary types determined by an OID.
6178 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6179 argument to 'req'. This is not because the function is newer or
6180 better than others it just uses the work 'NEW' in the certificate
6181 request header lines. Some software needs this.
6184 *) Reorganise password command line arguments: now passwords can be
6185 obtained from various sources. Delete the PEM_cb function and make
6186 it the default behaviour: i.e. if the callback is NULL and the
6187 usrdata argument is not NULL interpret it as a null terminated pass
6188 phrase. If usrdata and the callback are NULL then the pass phrase
6189 is prompted for as usual.
6192 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6193 the support is automatically enabled. The resulting binaries will
6194 autodetect the card and use it if present.
6195 [Ben Laurie and Compaq Inc.]
6197 *) Work around for Netscape hang bug. This sends certificate request
6198 and server done in one record. Since this is perfectly legal in the
6199 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6200 the bugs/SSLv3 entry for more info.
6203 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6206 *) Add -rand argument to smime and pkcs12 applications and read/write
6210 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6213 *) Add command line password options to the remaining applications.
6216 *) Bug fix for BN_div_recp() for numerators with an even number of
6220 *) More tests in bntest.c, and changed test_bn output.
6223 *) ./config recognizes MacOS X now.
6226 *) Bug fix for BN_div() when the first words of num and divsor are
6227 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6230 *) Add support for various broken PKCS#8 formats, and command line
6231 options to produce them.
6234 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6235 get temporary BIGNUMs from a BN_CTX.
6238 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6242 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6243 include a #define from the old name to the new. The original intent
6244 was that statically linked binaries could for example just call
6245 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6246 link with digests. This never worked becayse SSLeay_add_all_digests()
6247 and SSLeay_add_all_ciphers() were in the same source file so calling
6248 one would link with the other. They are now in separate source files.
6251 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6254 *) Use a less unusual form of the Miller-Rabin primality test (it used
6255 a binary algorithm for exponentiation integrated into the Miller-Rabin
6256 loop, our standard modexp algorithms are faster).
6259 *) Support for the EBCDIC character set completed.
6260 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6262 *) Source code cleanups: use const where appropriate, eliminate casts,
6263 use void * instead of char * in lhash.
6266 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6267 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6268 this the server could overwrite ephemeral keys that the client
6272 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6273 using 50 iterations of the Rabin-Miller test.
6275 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6276 iterations of the Rabin-Miller test as required by the appendix
6277 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6278 As BN_is_prime_fasttest includes trial division, DSA parameter
6279 generation becomes much faster.
6281 This implies a change for the callback functions in DSA_is_prime
6282 and DSA_generate_parameters: The callback function is called once
6283 for each positive witness in the Rabin-Miller test, not just
6284 occasionally in the inner loop; and the parameters to the
6285 callback function now provide an iteration count for the outer
6286 loop rather than for the current invocation of the inner loop.
6287 DSA_generate_parameters additionally can call the callback
6288 function with an 'iteration count' of -1, meaning that a
6289 candidate has passed the trial division test (when q is generated
6290 from an application-provided seed, trial division is skipped).
6293 *) New function BN_is_prime_fasttest that optionally does trial
6294 division before starting the Rabin-Miller test and has
6295 an additional BN_CTX * argument (whereas BN_is_prime always
6296 has to allocate at least one BN_CTX).
6297 'callback(1, -1, cb_arg)' is called when a number has passed the
6298 trial division stage.
6301 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6305 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6308 *) New function BN_pseudo_rand().
6311 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6312 bignum version of BN_from_montgomery() with the working code from
6313 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6317 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6318 made it impossible to use the same SSL_SESSION data structure in
6319 SSL2 clients in multiple threads.
6322 *) The return value of RAND_load_file() no longer counts bytes obtained
6323 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6324 to seed the PRNG (previously an explicit byte count was required).
6325 [Ulf Möller, Bodo Möller]
6327 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6328 used (char *) instead of (void *) and had casts all over the place.
6331 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6334 *) Retain source code compatibility for BN_prime_checks macro:
6335 BN_is_prime(..., BN_prime_checks, ...) now uses
6336 BN_prime_checks_for_size to determine the appropriate number of
6337 Rabin-Miller iterations.
6340 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6341 DH_CHECK_P_NOT_SAFE_PRIME.
6342 (Check if this is true? OpenPGP calls them "strong".)
6345 *) Merge the functionality of "dh" and "gendh" programs into a new program
6346 "dhparam". The old programs are retained for now but will handle DH keys
6347 (instead of parameters) in future.
6350 *) Make the ciphers, s_server and s_client programs check the return values
6351 when a new cipher list is set.
6354 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6355 ciphers. Before when the 56bit ciphers were enabled the sorting was
6358 The syntax for the cipher sorting has been extended to support sorting by
6359 cipher-strength (using the strength_bits hard coded in the tables).
6360 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6362 Fix a bug in the cipher-command parser: when supplying a cipher command
6363 string with an "undefined" symbol (neither command nor alphanumeric
6364 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6365 an error is flagged.
6367 Due to the strength-sorting extension, the code of the
6368 ssl_create_cipher_list() function was completely rearranged. I hope that
6369 the readability was also increased :-)
6370 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6372 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6373 for the first serial number and places 2 in the serial number file. This
6374 avoids problems when the root CA is created with serial number zero and
6375 the first user certificate has the same issuer name and serial number
6379 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6380 the new code. Add documentation for this stuff.
6383 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6384 X509_*() to X509at_*() on the grounds that they don't handle X509
6385 structures and behave in an analagous way to the X509v3 functions:
6386 they shouldn't be called directly but wrapper functions should be used
6389 So we also now have some wrapper functions that call the X509at functions
6390 when passed certificate requests. (TO DO: similar things can be done with
6391 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6392 things. Some of these need some d2i or i2d and print functionality
6393 because they handle more complex structures.)
6396 *) Add missing #ifndefs that caused missing symbols when building libssl
6397 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6398 NO_RSA in ssl/s2*.c.
6399 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6401 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6402 has a return value which indicates the quality of the random data
6403 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6404 error queue. New function RAND_pseudo_bytes() generates output that is
6405 guaranteed to be unique but not unpredictable. RAND_add is like
6406 RAND_seed, but takes an extra argument for an entropy estimate
6407 (RAND_seed always assumes full entropy).
6410 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6411 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6412 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6413 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6414 false-positive rate of at most 2^-80 for random input.
6417 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6420 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6421 in the 0.9.5 release), this returns the chain
6422 from an X509_CTX structure with a dup of the stack and all
6423 the X509 reference counts upped: so the stack will exist
6424 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6427 Also make SSL_SESSION_print() print out the verify return
6431 *) Add manpage for the pkcs12 command. Also change the default
6432 behaviour so MAC iteration counts are used unless the new
6433 -nomaciter option is used. This improves file security and
6434 only older versions of MSIE (4.0 for example) need it.
6437 *) Honor the no-xxx Configure options when creating .DEF files.
6440 *) Add PKCS#10 attributes to field table: challengePassword,
6441 unstructuredName and unstructuredAddress. These are taken from
6442 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6443 international characters are used.
6445 More changes to X509_ATTRIBUTE code: allow the setting of types
6446 based on strings. Remove the 'loc' parameter when adding
6447 attributes because these will be a SET OF encoding which is sorted
6451 *) Initial changes to the 'req' utility to allow request generation
6452 automation. This will allow an application to just generate a template
6453 file containing all the field values and have req construct the
6456 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6457 used all over the place including certificate requests and PKCS#7
6458 structures. They are currently handled manually where necessary with
6459 some primitive wrappers for PKCS#7. The new functions behave in a
6460 manner analogous to the X509 extension functions: they allow
6461 attributes to be looked up by NID and added.
6463 Later something similar to the X509V3 code would be desirable to
6464 automatically handle the encoding, decoding and printing of the
6465 more complex types. The string types like challengePassword can
6466 be handled by the string table functions.
6468 Also modified the multi byte string table handling. Now there is
6469 a 'global mask' which masks out certain types. The table itself
6470 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6471 is useful when for example there is only one permissible type
6472 (as in countryName) and using the mask might result in no valid
6476 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6477 SSL_get_peer_finished to allow applications to obtain the latest
6478 Finished messages sent to the peer or expected from the peer,
6479 respectively. (SSL_get_peer_finished is usually the Finished message
6480 actually received from the peer, otherwise the protocol will be aborted.)
6482 As the Finished message are message digests of the complete handshake
6483 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6484 be used for external authentication procedures when the authentication
6485 provided by SSL/TLS is not desired or is not enough.
6488 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6489 the host supports BWX extension and if Compaq C is present on the
6490 $PATH. Just exploiting of the BWX extension results in 20-30%
6491 performance kick for some algorithms, e.g. DES and RC4 to mention
6492 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6496 *) Add support for MS "fast SGC". This is arguably a violation of the
6497 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6498 weak crypto and after checking the certificate is SGC a second one
6499 with strong crypto. MS SGC stops the first handshake after receiving
6500 the server certificate message and sends a second client hello. Since
6501 a server will typically do all the time consuming operations before
6502 expecting any further messages from the client (server key exchange
6503 is the most expensive) there is little difference between the two.
6505 To get OpenSSL to support MS SGC we have to permit a second client
6506 hello message after we have sent server done. In addition we have to
6507 reset the MAC if we do get this second client hello.
6510 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6511 if a DER encoded private key is RSA or DSA traditional format. Changed
6512 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6513 format DER encoded private key. Newer code should use PKCS#8 format which
6514 has the key type encoded in the ASN1 structure. Added DER private key
6515 support to pkcs8 application.
6518 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6519 ciphersuites has been selected (as required by the SSL 3/TLS 1
6520 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6521 is set, we interpret this as a request to violate the specification
6522 (the worst that can happen is a handshake failure, and 'correct'
6523 behaviour would result in a handshake failure anyway).
6526 *) In SSL_CTX_add_session, take into account that there might be multiple
6527 SSL_SESSION structures with the same session ID (e.g. when two threads
6528 concurrently obtain them from an external cache).
6529 The internal cache can handle only one SSL_SESSION with a given ID,
6530 so if there's a conflict, we now throw out the old one to achieve
6534 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6535 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6536 some routines that use cipher OIDs: some ciphers do not have OIDs
6537 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6541 *) Simplify the trust setting structure and code. Now we just have
6542 two sequences of OIDs for trusted and rejected settings. These will
6543 typically have values the same as the extended key usage extension
6544 and any application specific purposes.
6546 The trust checking code now has a default behaviour: it will just
6547 check for an object with the same NID as the passed id. Functions can
6548 be provided to override either the default behaviour or the behaviour
6549 for a given id. SSL client, server and email already have functions
6550 in place for compatibility: they check the NID and also return "trusted"
6551 if the certificate is self signed.
6554 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6555 traditional format into an EVP_PKEY structure.
6558 *) Add a password callback function PEM_cb() which either prompts for
6559 a password if usr_data is NULL or otherwise assumes it is a null
6560 terminated password. Allow passwords to be passed on command line
6561 environment or config files in a few more utilities.
6564 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6565 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6566 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6567 Update documentation.
6570 *) Support for ASN1 "NULL" type. This could be handled before by using
6571 ASN1_TYPE but there wasn't any function that would try to read a NULL
6572 and produce an error if it couldn't. For compatibility we also have
6573 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6574 don't allocate anything because they don't need to.
6577 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6579 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6581 *) Rebuild of the memory allocation routines used by OpenSSL code and
6582 possibly others as well. The purpose is to make an interface that
6583 provide hooks so anyone can build a separate set of allocation and
6584 deallocation routines to be used by OpenSSL, for example memory
6585 pool implementations, or something else, which was previously hard
6586 since Malloc(), Realloc() and Free() were defined as macros having
6587 the values malloc, realloc and free, respectively (except for Win32
6588 compilations). The same is provided for memory debugging code.
6589 OpenSSL already comes with functionality to find memory leaks, but
6590 this gives people a chance to debug other memory problems.
6592 With these changes, a new set of functions and macros have appeared:
6594 CRYPTO_set_mem_debug_functions() [F]
6595 CRYPTO_get_mem_debug_functions() [F]
6596 CRYPTO_dbg_set_options() [F]
6597 CRYPTO_dbg_get_options() [F]
6598 CRYPTO_malloc_debug_init() [M]
6600 The memory debug functions are NULL by default, unless the library
6601 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6602 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6603 gives the standard debugging functions that come with OpenSSL) or
6604 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6605 provided by the library user) must be used. When the standard
6606 debugging functions are used, CRYPTO_dbg_set_options can be used to
6607 request additional information:
6608 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6609 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6611 Also, things like CRYPTO_set_mem_functions will always give the
6612 expected result (the new set of functions is used for allocation
6613 and deallocation) at all times, regardless of platform and compiler
6616 To finish it up, some functions that were never use in any other
6617 way than through macros have a new API and new semantic:
6620 CRYPTO_dbg_realloc()
6623 All macros of value have retained their old syntax.
6624 [Richard Levitte and Bodo Moeller]
6626 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6627 ordering of SMIMECapabilities wasn't in "strength order" and there
6628 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6632 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6633 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6634 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6636 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6637 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6638 functionality to handle multipart/signed properly) and a utility
6639 called 'smime' to call all this stuff. This is based on code I
6640 originally wrote for Celo who have kindly allowed it to be
6641 included in OpenSSL.
6644 *) Add variants des_set_key_checked and des_set_key_unchecked of
6645 des_set_key (aka des_key_sched). Global variable des_check_key
6646 decides which of these is called by des_set_key; this way
6647 des_check_key behaves as it always did, but applications and
6648 the library itself, which was buggy for des_check_key == 1,
6649 have a cleaner way to pick the version they need.
6652 *) New function PKCS12_newpass() which changes the password of a
6656 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6657 dynamic mix. In both cases the ids can be used as an index into the
6658 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6659 functions so they accept a list of the field values and the
6660 application doesn't need to directly manipulate the X509_TRUST
6664 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6668 *) Modify the way the V3 extension code looks up extensions. This now
6669 works in a similar way to the object code: we have some "standard"
6670 extensions in a static table which is searched with OBJ_bsearch()
6671 and the application can add dynamic ones if needed. The file
6672 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6673 updated whenever a new extension is added to the core code and kept
6674 in ext_nid order. There is a simple program 'tabtest.c' which checks
6675 this. New extensions are not added too often so this file can readily
6676 be maintained manually.
6678 There are two big advantages in doing things this way. The extensions
6679 can be looked up immediately and no longer need to be "added" using
6680 X509V3_add_standard_extensions(): this function now does nothing.
6681 [Side note: I get *lots* of email saying the extension code doesn't
6682 work because people forget to call this function]
6683 Also no dynamic allocation is done unless new extensions are added:
6684 so if we don't add custom extensions there is no need to call
6685 X509V3_EXT_cleanup().
6688 *) Modify enc utility's salting as follows: make salting the default. Add a
6689 magic header, so unsalted files fail gracefully instead of just decrypting
6690 to garbage. This is because not salting is a big security hole, so people
6691 should be discouraged from doing it.
6694 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6695 digest to be passed on the command line but it only used this
6696 parameter when signing a certificate. Modified so all relevant
6697 operations are affected by the digest parameter including the
6698 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6699 DSA key was used because it didn't fix the digest.
6702 *) Initial certificate chain verify code. Currently tests the untrusted
6703 certificates for consistency with the verify purpose (which is set
6704 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6706 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6707 this is because it will reject chains with invalid extensions whereas
6708 every previous version of OpenSSL and SSLeay made no checks at all.
6710 Trust code: checks the root CA for the relevant trust settings. Trust
6711 settings have an initial value consistent with the verify purpose: e.g.
6712 if the verify purpose is for SSL client use it expects the CA to be
6713 trusted for SSL client use. However the default value can be changed to
6714 permit custom trust settings: one example of this would be to only trust
6715 certificates from a specific "secure" set of CAs.
6717 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6718 which should be used for version portability: especially since the
6719 verify structure is likely to change more often now.
6721 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6722 to set them. If not set then assume SSL clients will verify SSL servers
6725 Two new options to the verify program: -untrusted allows a set of
6726 untrusted certificates to be passed in and -purpose which sets the
6727 intended purpose of the certificate. If a purpose is set then the
6728 new chain verify code is used to check extension consistency.
6731 *) Support for the authority information access extension.
6734 *) Modify RSA and DSA PEM read routines to transparently handle
6735 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6736 public keys in a format compatible with certificate
6737 SubjectPublicKeyInfo structures. Unfortunately there were already
6738 functions called *_PublicKey_* which used various odd formats so
6739 these are retained for compatibility: however the DSA variants were
6740 never in a public release so they have been deleted. Changed dsa/rsa
6741 utilities to handle the new format: note no releases ever handled public
6742 keys so we should be OK.
6744 The primary motivation for this change is to avoid the same fiasco
6745 that dogs private keys: there are several incompatible private key
6746 formats some of which are standard and some OpenSSL specific and
6747 require various evil hacks to allow partial transparent handling and
6748 even then it doesn't work with DER formats. Given the option anything
6749 other than PKCS#8 should be dumped: but the other formats have to
6750 stay in the name of compatibility.
6752 With public keys and the benefit of hindsight one standard format
6753 is used which works with EVP_PKEY, RSA or DSA structures: though
6754 it clearly returns an error if you try to read the wrong kind of key.
6756 Added a -pubkey option to the 'x509' utility to output the public key.
6757 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6758 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6759 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6760 that do the same as the EVP_PKEY_assign_*() except they up the
6761 reference count of the added key (they don't "swallow" the
6765 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6766 CRLs would fail if the file contained no certificates or no CRLs:
6767 added a new function to read in both types and return the number
6768 read: this means that if none are read it will be an error. The
6769 DER versions of the certificate and CRL reader would always fail
6770 because it isn't possible to mix certificates and CRLs in DER format
6771 without choking one or the other routine. Changed this to just read
6772 a certificate: this is the best we can do. Also modified the code
6773 in apps/verify.c to take notice of return codes: it was previously
6774 attempting to read in certificates from NULL pointers and ignoring
6775 any errors: this is one reason why the cert and CRL reader seemed
6776 to work. It doesn't check return codes from the default certificate
6777 routines: these may well fail if the certificates aren't installed.
6780 *) Code to support otherName option in GeneralName.
6783 *) First update to verify code. Change the verify utility
6784 so it warns if it is passed a self signed certificate:
6785 for consistency with the normal behaviour. X509_verify
6786 has been modified to it will now verify a self signed
6787 certificate if *exactly* the same certificate appears
6788 in the store: it was previously impossible to trust a
6789 single self signed certificate. This means that:
6790 openssl verify ss.pem
6791 now gives a warning about a self signed certificate but
6792 openssl verify -CAfile ss.pem ss.pem
6796 *) For servers, store verify_result in SSL_SESSION data structure
6797 (and add it to external session representation).
6798 This is needed when client certificate verifications fails,
6799 but an application-provided verification callback (set by
6800 SSL_CTX_set_cert_verify_callback) allows accepting the session
6801 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6802 but returns 1): When the session is reused, we have to set
6803 ssl->verify_result to the appropriate error code to avoid
6805 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6807 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6808 case in PKCS7_dataInit() where the signed PKCS7 structure
6809 didn't contain any existing data because it was being created.
6810 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6812 *) Add a salt to the key derivation routines in enc.c. This
6813 forms the first 8 bytes of the encrypted file. Also add a
6814 -S option to allow a salt to be input on the command line.
6817 *) New function X509_cmp(). Oddly enough there wasn't a function
6818 to compare two certificates. We do this by working out the SHA1
6819 hash and comparing that. X509_cmp() will be needed by the trust
6823 *) SSL_get1_session() is like SSL_get_session(), but increments
6824 the reference count in the SSL_SESSION returned.
6825 [Geoff Thorpe <geoff@eu.c2.net>]
6827 *) Fix for 'req': it was adding a null to request attributes.
6828 Also change the X509_LOOKUP and X509_INFO code to handle
6829 certificate auxiliary information.
6832 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6836 *) Add the possibility to add extra information to the memory leak
6837 detecting output, to form tracebacks, showing from where each
6838 allocation was originated: CRYPTO_push_info("constant string") adds
6839 the string plus current file name and line number to a per-thread
6840 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6841 is like calling CYRPTO_pop_info() until the stack is empty.
6842 Also updated memory leak detection code to be multi-thread-safe.
6845 *) Add options -text and -noout to pkcs7 utility and delete the
6846 encryption options which never did anything. Update docs.
6849 *) Add options to some of the utilities to allow the pass phrase
6850 to be included on either the command line (not recommended on
6851 OSes like Unix) or read from the environment. Update the
6852 manpages and fix a few bugs.
6855 *) Add a few manpages for some of the openssl commands.
6858 *) Fix the -revoke option in ca. It was freeing up memory twice,
6859 leaking and not finding already revoked certificates.
6862 *) Extensive changes to support certificate auxiliary information.
6863 This involves the use of X509_CERT_AUX structure and X509_AUX
6864 functions. An X509_AUX function such as PEM_read_X509_AUX()
6865 can still read in a certificate file in the usual way but it
6866 will also read in any additional "auxiliary information". By
6867 doing things this way a fair degree of compatibility can be
6868 retained: existing certificates can have this information added
6869 using the new 'x509' options.
6871 Current auxiliary information includes an "alias" and some trust
6872 settings. The trust settings will ultimately be used in enhanced
6873 certificate chain verification routines: currently a certificate
6874 can only be trusted if it is self signed and then it is trusted
6878 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6879 The problem was that one of the replacement routines had not been working
6880 since SSLeay releases. For now the offending routine has been replaced
6881 with non-optimised assembler. Even so, this now gives around 95%
6882 performance improvement for 1024 bit RSA signs.
6885 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6886 handling. Most clients have the effective key size in bits equal to
6887 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6888 A few however don't do this and instead use the size of the decrypted key
6889 to determine the RC2 key length and the AlgorithmIdentifier to determine
6890 the effective key length. In this case the effective key length can still
6891 be 40 bits but the key length can be 168 bits for example. This is fixed
6892 by manually forcing an RC2 key into the EVP_PKEY structure because the
6893 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6894 the key length and effective key length are equal.
6897 *) Add a bunch of functions that should simplify the creation of
6898 X509_NAME structures. Now you should be able to do:
6899 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6900 and have it automatically work out the correct field type and fill in
6901 the structures. The more adventurous can try:
6902 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6903 and it will (hopefully) work out the correct multibyte encoding.
6906 *) Change the 'req' utility to use the new field handling and multibyte
6907 copy routines. Before the DN field creation was handled in an ad hoc
6908 way in req, ca, and x509 which was rather broken and didn't support
6909 BMPStrings or UTF8Strings. Since some software doesn't implement
6910 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6911 using the dirstring_type option. See the new comment in the default
6912 openssl.cnf for more info.
6915 *) Make crypto/rand/md_rand.c more robust:
6916 - Assure unique random numbers after fork().
6917 - Make sure that concurrent threads access the global counter and
6918 md serializably so that we never lose entropy in them
6919 or use exactly the same state in multiple threads.
6920 Access to the large state is not always serializable because
6921 the additional locking could be a performance killer, and
6922 md should be large enough anyway.
6925 *) New file apps/app_rand.c with commonly needed functionality
6926 for handling the random seed file.
6928 Use the random seed file in some applications that previously did not:
6930 dsaparam -genkey (which also ignored its '-rand' option),
6933 x509 (when signing).
6934 Except on systems with /dev/urandom, it is crucial to have a random
6935 seed file at least for key creation, DSA signing, and for DH exchanges;
6936 for RSA signatures we could do without one.
6938 gendh and gendsa (unlike genrsa) used to read only the first byte
6939 of each file listed in the '-rand' option. The function as previously
6940 found in genrsa is now in app_rand.c and is used by all programs
6941 that support '-rand'.
6944 *) In RAND_write_file, use mode 0600 for creating files;
6945 don't just chmod when it may be too late.
6948 *) Report an error from X509_STORE_load_locations
6949 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6952 *) New function ASN1_mbstring_copy() this copies a string in either
6953 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6954 into an ASN1_STRING type. A mask of permissible types is passed
6955 and it chooses the "minimal" type to use or an error if not type
6959 *) Add function equivalents to the various macros in asn1.h. The old
6960 macros are retained with an M_ prefix. Code inside the library can
6961 use the M_ macros. External code (including the openssl utility)
6962 should *NOT* in order to be "shared library friendly".
6965 *) Add various functions that can check a certificate's extensions
6966 to see if it usable for various purposes such as SSL client,
6967 server or S/MIME and CAs of these types. This is currently
6968 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6969 verification. Also added a -purpose flag to x509 utility to
6970 print out all the purposes.
6973 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6977 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6978 for, obtain and decode and extension and obtain its critical flag.
6979 This allows all the necessary extension code to be handled in a
6980 single function call.
6983 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6984 platforms. See crypto/rc4/rc4_enc.c for further details.
6987 *) New -noout option to asn1parse. This causes no output to be produced
6988 its main use is when combined with -strparse and -out to extract data
6989 from a file (which may not be in ASN.1 format).
6992 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6993 when producing the local key id.
6994 [Richard Levitte <levitte@stacken.kth.se>]
6996 *) New option -dhparam in s_server. This allows a DH parameter file to be
6997 stated explicitly. If it is not stated then it tries the first server
6998 certificate file. The previous behaviour hard coded the filename
7002 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7003 a public key to be input or output. For example:
7004 openssl rsa -in key.pem -pubout -out pubkey.pem
7005 Also added necessary DSA public key functions to handle this.
7008 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7009 in the message. This was handled by allowing
7010 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7011 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7013 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7014 to the end of the strings whereas this didn't. This would cause problems
7015 if strings read with d2i_ASN1_bytes() were later modified.
7016 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7018 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7019 data and it contains EOF it will end up returning an error. This is
7020 caused by input 46 bytes long. The cause is due to the way base64
7021 BIOs find the start of base64 encoded data. They do this by trying a
7022 trial decode on each line until they find one that works. When they
7023 do a flag is set and it starts again knowing it can pass all the
7024 data directly through the decoder. Unfortunately it doesn't reset
7025 the context it uses. This means that if EOF is reached an attempt
7026 is made to pass two EOFs through the context and this causes the
7027 resulting error. This can also cause other problems as well. As is
7028 usual with these problems it takes *ages* to find and the fix is
7029 trivial: move one line.
7030 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7032 *) Ugly workaround to get s_client and s_server working under Windows. The
7033 old code wouldn't work because it needed to select() on sockets and the
7034 tty (for keypresses and to see if data could be written). Win32 only
7035 supports select() on sockets so we select() with a 1s timeout on the
7036 sockets and then see if any characters are waiting to be read, if none
7037 are present then we retry, we also assume we can always write data to
7038 the tty. This isn't nice because the code then blocks until we've
7039 received a complete line of data and it is effectively polling the
7040 keyboard at 1s intervals: however it's quite a bit better than not
7041 working at all :-) A dedicated Windows application might handle this
7042 with an event loop for example.
7045 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7046 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7047 will be called when RSA_sign() and RSA_verify() are used. This is useful
7048 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7049 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7050 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7051 This necessitated the support of an extra signature type NID_md5_sha1
7052 for SSL signatures and modifications to the SSL library to use it instead
7053 of calling RSA_public_decrypt() and RSA_private_encrypt().
7056 *) Add new -verify -CAfile and -CApath options to the crl program, these
7057 will lookup a CRL issuers certificate and verify the signature in a
7058 similar way to the verify program. Tidy up the crl program so it
7059 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7060 less strict. It will now permit CRL extensions even if it is not
7061 a V2 CRL: this will allow it to tolerate some broken CRLs.
7064 *) Initialize all non-automatic variables each time one of the openssl
7065 sub-programs is started (this is necessary as they may be started
7066 multiple times from the "OpenSSL>" prompt).
7067 [Lennart Bang, Bodo Moeller]
7069 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7070 removing all other RSA functionality (this is what NO_RSA does). This
7071 is so (for example) those in the US can disable those operations covered
7072 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7076 *) Non-copying interface to BIO pairs.
7077 (still largely untested)
7080 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7081 ASCII string. This was handled independently in various places before.
7084 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7085 UTF8 strings a character at a time.
7088 *) Use client_version from client hello to select the protocol
7089 (s23_srvr.c) and for RSA client key exchange verification
7090 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7093 *) Add various utility functions to handle SPKACs, these were previously
7094 handled by poking round in the structure internals. Added new function
7095 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7096 print, verify and generate SPKACs. Based on an original idea from
7097 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7100 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7103 *) Allow the config file extension section to be overwritten on the
7104 command line. Based on an original idea from Massimiliano Pala
7105 <madwolf@comune.modena.it>. The new option is called -extensions
7106 and can be applied to ca, req and x509. Also -reqexts to override
7107 the request extensions in req and -crlexts to override the crl extensions
7111 *) Add new feature to the SPKAC handling in ca. Now you can include
7112 the same field multiple times by preceding it by "XXXX." for example:
7115 this is the same syntax as used in the req config file.
7118 *) Allow certificate extensions to be added to certificate requests. These
7119 are specified in a 'req_extensions' option of the req section of the
7120 config file. They can be printed out with the -text option to req but
7121 are otherwise ignored at present.
7124 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7125 data read consists of only the final block it would not decrypted because
7126 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7127 A misplaced 'break' also meant the decrypted final block might not be
7128 copied until the next read.
7131 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7132 a few extra parameters to the DH structure: these will be useful if
7133 for example we want the value of 'q' or implement X9.42 DH.
7136 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7137 provides hooks that allow the default DSA functions or functions on a
7138 "per key" basis to be replaced. This allows hardware acceleration and
7139 hardware key storage to be handled without major modification to the
7140 library. Also added low level modexp hooks and CRYPTO_EX structure and
7141 associated functions.
7144 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7145 as "read only": it can't be written to and the buffer it points to will
7146 not be freed. Reading from a read only BIO is much more efficient than
7147 a normal memory BIO. This was added because there are several times when
7148 an area of memory needs to be read from a BIO. The previous method was
7149 to create a memory BIO and write the data to it, this results in two
7150 copies of the data and an O(n^2) reading algorithm. There is a new
7151 function BIO_new_mem_buf() which creates a read only memory BIO from
7152 an area of memory. Also modified the PKCS#7 routines to use read only
7156 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7157 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7158 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7159 but a retry condition occured while trying to read the rest.
7162 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7163 NID_pkcs7_encrypted by default: this was wrong since this should almost
7164 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7165 the encrypted data type: this is a more sensible place to put it and it
7166 allows the PKCS#12 code to be tidied up that duplicated this
7170 *) Changed obj_dat.pl script so it takes its input and output files on
7171 the command line. This should avoid shell escape redirection problems
7175 *) Initial support for certificate extension requests, these are included
7176 in things like Xenroll certificate requests. Included functions to allow
7177 extensions to be obtained and added.
7180 *) -crlf option to s_client and s_server for sending newlines as
7181 CRLF (as required by many protocols).
7184 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7186 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7187 [Ralf S. Engelschall]
7189 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7190 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7192 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7196 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7197 DH parameters/keys (q is lost during that conversion, but the resulting
7198 DH parameters contain its length).
7200 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7201 much faster than DH_generate_parameters (which creates parameters
7202 where p = 2*q + 1), and also the smaller q makes DH computations
7203 much more efficient (160-bit exponentiation instead of 1024-bit
7204 exponentiation); so this provides a convenient way to support DHE
7205 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7206 utter importance to use
7207 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7209 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7210 when such DH parameters are used, because otherwise small subgroup
7211 attacks may become possible!
7214 *) Avoid memory leak in i2d_DHparams.
7217 *) Allow the -k option to be used more than once in the enc program:
7218 this allows the same encrypted message to be read by multiple recipients.
7221 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7222 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7223 it will always use the numerical form of the OID, even if it has a short
7227 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7228 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7229 otherwise bn_mod_exp was called. In the case of hardware keys for example
7230 no private key components need be present and it might store extra data
7231 in the RSA structure, which cannot be accessed from bn_mod_exp.
7232 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7233 private key operations.
7236 *) Added support for SPARC Linux.
7239 *) pem_password_cb function type incompatibly changed from
7240 typedef int pem_password_cb(char *buf, int size, int rwflag);
7242 ....(char *buf, int size, int rwflag, void *userdata);
7243 so that applications can pass data to their callbacks:
7244 The PEM[_ASN1]_{read,write}... functions and macros now take an
7245 additional void * argument, which is just handed through whenever
7246 the password callback is called.
7247 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7249 New function SSL_CTX_set_default_passwd_cb_userdata.
7251 Compatibility note: As many C implementations push function arguments
7252 onto the stack in reverse order, the new library version is likely to
7253 interoperate with programs that have been compiled with the old
7254 pem_password_cb definition (PEM_whatever takes some data that
7255 happens to be on the stack as its last argument, and the callback
7256 just ignores this garbage); but there is no guarantee whatsoever that
7259 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7260 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7261 problems not only on Windows, but also on some Unix platforms.
7262 To avoid problematic command lines, these definitions are now in an
7263 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7264 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7267 *) MIPS III/IV assembler module is reimplemented.
7270 *) More DES library cleanups: remove references to srand/rand and
7271 delete an unused file.
7274 *) Add support for the the free Netwide assembler (NASM) under Win32,
7275 since not many people have MASM (ml) and it can be hard to obtain.
7276 This is currently experimental but it seems to work OK and pass all
7277 the tests. Check out INSTALL.W32 for info.
7280 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7281 without temporary keys kept an extra copy of the server key,
7282 and connections with temporary keys did not free everything in case
7286 *) New function RSA_check_key and new openssl rsa option -check
7287 for verifying the consistency of RSA keys.
7288 [Ulf Moeller, Bodo Moeller]
7290 *) Various changes to make Win32 compile work:
7291 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7292 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7293 comparison" warnings.
7294 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7297 *) Add a debugging option to PKCS#5 v2 key generation function: when
7298 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7299 derived keys are printed to stderr.
7302 *) Copy the flags in ASN1_STRING_dup().
7303 [Roman E. Pavlov <pre@mo.msk.ru>]
7305 *) The x509 application mishandled signing requests containing DSA
7306 keys when the signing key was also DSA and the parameters didn't match.
7308 It was supposed to omit the parameters when they matched the signing key:
7309 the verifying software was then supposed to automatically use the CA's
7310 parameters if they were absent from the end user certificate.
7312 Omitting parameters is no longer recommended. The test was also
7313 the wrong way round! This was probably due to unusual behaviour in
7314 EVP_cmp_parameters() which returns 1 if the parameters match.
7315 This meant that parameters were omitted when they *didn't* match and
7316 the certificate was useless. Certificates signed with 'ca' didn't have
7318 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7320 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7321 The interface is as follows:
7322 Applications can use
7323 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7324 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7325 "off" is now the default.
7326 The library internally uses
7327 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7328 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7329 to disable memory-checking temporarily.
7331 Some inconsistent states that previously were possible (and were
7332 even the default) are now avoided.
7334 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7335 with each memory chunk allocated; this is occasionally more helpful
7336 than just having a counter.
7338 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7340 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7344 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7345 which largely parallels "options", but is for changing API behaviour,
7346 whereas "options" are about protocol behaviour.
7347 Initial "mode" flags are:
7349 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7350 a single record has been written.
7351 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7352 retries use the same buffer location.
7353 (But all of the contents must be
7357 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7360 *) Fix problems with no-hmac etc.
7361 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7363 *) New functions RSA_get_default_method(), RSA_set_method() and
7364 RSA_get_method(). These allows replacement of RSA_METHODs without having
7365 to mess around with the internals of an RSA structure.
7368 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7369 Also really enable memory leak checks in openssl.c and in some
7371 [Chad C. Mulligan, Bodo Moeller]
7373 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7374 up the length of negative integers. This has now been simplified to just
7375 store the length when it is first determined and use it later, rather
7376 than trying to keep track of where data is copied and updating it to
7378 [Steve Henson, reported by Brien Wheeler
7379 <bwheeler@authentica-security.com>]
7381 *) Add a new function PKCS7_signatureVerify. This allows the verification
7382 of a PKCS#7 signature but with the signing certificate passed to the
7383 function itself. This contrasts with PKCS7_dataVerify which assumes the
7384 certificate is present in the PKCS#7 structure. This isn't always the
7385 case: certificates can be omitted from a PKCS#7 structure and be
7386 distributed by "out of band" means (such as a certificate database).
7389 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7390 function prototypes in pem.h, also change util/mkdef.pl to add the
7391 necessary function names.
7394 *) mk1mf.pl (used by Windows builds) did not properly read the
7395 options set by Configure in the top level Makefile, and Configure
7396 was not even able to write more than one option correctly.
7397 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7400 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7401 file to be loaded from a BIO or FILE pointer. The BIO version will
7402 for example allow memory BIOs to contain config info.
7405 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7406 Whoever hopes to achieve shared-library compatibility across versions
7407 must use this, not the compile-time macro.
7408 (Exercise 0.9.4: Which is the minimum library version required by
7410 Note: All this applies only to multi-threaded programs, others don't
7414 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7415 through a BIO pair triggered the default case, i.e.
7416 SSLerr(...,SSL_R_UNKNOWN_STATE).
7419 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7420 can use the SSL library even if none of the specific BIOs is
7424 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7425 for the encoded length.
7426 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7428 *) Add initial documentation of the X509V3 functions.
7431 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7432 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7433 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7434 secure PKCS#8 private key format with a high iteration count.
7437 *) Fix determination of Perl interpreter: A perl or perl5
7438 _directory_ in $PATH was also accepted as the interpreter.
7439 [Ralf S. Engelschall]
7441 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7442 wrong with it but it was very old and did things like calling
7443 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7447 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7448 to use the new extension code.
7451 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7452 with macros. This should make it easier to change their form, add extra
7453 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7457 *) Add to configuration table a new entry that can specify an alternative
7458 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7459 according to Mark Crispin <MRC@Panda.COM>.
7463 *) DES CBC did not update the IV. Weird.
7466 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7467 Changing the behaviour of the former might break existing programs --
7468 where IV updating is needed, des_ncbc_encrypt can be used.
7471 *) When bntest is run from "make test" it drives bc to check its
7472 calculations, as well as internally checking them. If an internal check
7473 fails, it needs to cause bc to give a non-zero result or make test carries
7474 on without noticing the failure. Fixed.
7477 *) DES library cleanups.
7480 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7481 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7482 ciphers. NOTE: although the key derivation function has been verified
7483 against some published test vectors it has not been extensively tested
7484 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7488 *) Instead of "mkdir -p", which is not fully portable, use new
7489 Perl script "util/mkdir-p.pl".
7492 *) Rewrite the way password based encryption (PBE) is handled. It used to
7493 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7494 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7495 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7496 the 'parameter' field of the AlgorithmIdentifier is passed to the
7497 underlying key generation function so it must do its own ASN1 parsing.
7498 This has also changed the EVP_PBE_CipherInit() function which now has a
7499 'parameter' argument instead of literal salt and iteration count values
7500 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7503 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7504 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7505 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7506 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7507 value was just used as a "magic string" and not used directly its
7508 value doesn't matter.
7511 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7515 *) "linux-sparc64" configuration (ultrapenguin).
7516 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7517 "linux-sparc" configuration.
7518 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7520 *) config now generates no-xxx options for missing ciphers.
7523 *) Support the EBCDIC character set (work in progress).
7524 File ebcdic.c not yet included because it has a different license.
7525 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7527 *) Support BS2000/OSD-POSIX.
7528 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7530 *) Make callbacks for key generation use void * instead of char *.
7533 *) Make S/MIME samples compile (not yet tested).
7536 *) Additional typesafe stacks.
7539 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7543 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7545 *) New configuration variant "sco5-gcc".
7547 *) Updated some demos.
7548 [Sean O Riordain, Wade Scholine]
7550 *) Add missing BIO_free at exit of pkcs12 application.
7553 *) Fix memory leak in conf.c.
7556 *) Updates for Win32 to assembler version of MD5.
7559 *) Set #! path to perl in apps/der_chop to where we found it
7560 instead of using a fixed path.
7563 *) SHA library changes for irix64-mips4-cc.
7566 *) Improvements for VMS support.
7570 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7572 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7573 This also avoids the problems with SC4.2 and unpatched SC5.
7574 [Andy Polyakov <appro@fy.chalmers.se>]
7576 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7577 These are required because of the typesafe stack would otherwise break
7578 existing code. If old code used a structure member which used to be STACK
7579 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7580 sk_num or sk_value it would produce an error because the num, data members
7581 are not present in STACK_OF. Now it just produces a warning. sk_set
7582 replaces the old method of assigning a value to sk_value
7583 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7584 that does this will no longer work (and should use sk_set instead) but
7585 this could be regarded as a "questionable" behaviour anyway.
7588 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7589 correctly handle encrypted S/MIME data.
7592 *) Change type of various DES function arguments from des_cblock
7593 (which means, in function argument declarations, pointer to char)
7594 to des_cblock * (meaning pointer to array with 8 char elements),
7595 which allows the compiler to do more typechecking; it was like
7596 that back in SSLeay, but with lots of ugly casts.
7598 Introduce new type const_des_cblock.
7601 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7602 problems: find RecipientInfo structure that matches recipient certificate
7603 and initialise the ASN1 structures properly based on passed cipher.
7606 *) Belatedly make the BN tests actually check the results.
7609 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7610 to and from BNs: it was completely broken. New compilation option
7611 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7612 key elements as negative integers.
7615 *) Reorganize and speed up MD5.
7616 [Andy Polyakov <appro@fy.chalmers.se>]
7619 [Richard Levitte <richard@levitte.org>]
7621 *) New option -out to asn1parse to allow the parsed structure to be
7622 output to a file. This is most useful when combined with the -strparse
7623 option to examine the output of things like OCTET STRINGS.
7626 *) Make SSL library a little more fool-proof by not requiring any longer
7627 that SSL_set_{accept,connect}_state be called before
7628 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7629 in many applications because usually everything *appeared* to work as
7630 intended anyway -- now it really works as intended).
7633 *) Move openssl.cnf out of lib/.
7636 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7637 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7638 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7639 [Ralf S. Engelschall]
7641 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7642 handle PKCS#7 enveloped data properly.
7643 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7645 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7646 copying pointers. The cert_st handling is changed by this in
7647 various ways (and thus what used to be known as ctx->default_cert
7648 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7649 any longer when s->cert does not give us what we need).
7650 ssl_cert_instantiate becomes obsolete by this change.
7651 As soon as we've got the new code right (possibly it already is?),
7652 we have solved a couple of bugs of the earlier code where s->cert
7653 was used as if it could not have been shared with other SSL structures.
7655 Note that using the SSL API in certain dirty ways now will result
7656 in different behaviour than observed with earlier library versions:
7657 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7658 does not influence s as it used to.
7660 In order to clean up things more thoroughly, inside SSL_SESSION
7661 we don't use CERT any longer, but a new structure SESS_CERT
7662 that holds per-session data (if available); currently, this is
7663 the peer's certificate chain and, for clients, the server's certificate
7664 and temporary key. CERT holds only those values that can have
7665 meaningful defaults in an SSL_CTX.
7668 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7669 from the internal representation. Various PKCS#7 fixes: remove some
7670 evil casts and set the enc_dig_alg field properly based on the signing
7674 *) Allow PKCS#12 password to be set from the command line or the
7675 environment. Let 'ca' get its config file name from the environment
7676 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7680 *) Allow certificate policies extension to use an IA5STRING for the
7681 organization field. This is contrary to the PKIX definition but
7682 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7686 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7687 without disallowing inline assembler and the like for non-pedantic builds.
7690 *) Support Borland C++ builder.
7691 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7696 *) SHA-1 cleanups and performance enhancements.
7697 [Andy Polyakov <appro@fy.chalmers.se>]
7699 *) Sparc v8plus assembler for the bignum library.
7700 [Andy Polyakov <appro@fy.chalmers.se>]
7702 *) Accept any -xxx and +xxx compiler options in Configure.
7705 *) Update HPUX configuration.
7708 *) Add missing sk_<type>_unshift() function to safestack.h
7709 [Ralf S. Engelschall]
7711 *) New function SSL_CTX_use_certificate_chain_file that sets the
7712 "extra_cert"s in addition to the certificate. (This makes sense
7713 only for "PEM" format files, as chains as a whole are not
7717 *) Support verify_depth from the SSL API.
7718 x509_vfy.c had what can be considered an off-by-one-error:
7719 Its depth (which was not part of the external interface)
7720 was actually counting the number of certificates in a chain;
7721 now it really counts the depth.
7724 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7725 instead of X509err, which often resulted in confusing error
7726 messages since the error codes are not globally unique
7727 (e.g. an alleged error in ssl3_accept when a certificate
7728 didn't match the private key).
7730 *) New function SSL_CTX_set_session_id_context that allows to set a default
7731 value (so that you don't need SSL_set_session_id_context for each
7732 connection using the SSL_CTX).
7735 *) OAEP decoding bug fix.
7738 *) Support INSTALL_PREFIX for package builders, as proposed by
7742 *) New Configure options "threads" and "no-threads". For systems
7743 where the proper compiler options are known (currently Solaris
7744 and Linux), "threads" is the default.
7747 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7750 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7751 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7752 such as /usr/local/bin.
7755 *) "make linux-shared" to build shared libraries.
7756 [Niels Poppe <niels@netbox.org>]
7758 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7761 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7762 extension adding in x509 utility.
7765 *) Remove NOPROTO sections and error code comments.
7768 *) Partial rewrite of the DEF file generator to now parse the ANSI
7772 *) New Configure options --prefix=DIR and --openssldir=DIR.
7775 *) Complete rewrite of the error code script(s). It is all now handled
7776 by one script at the top level which handles error code gathering,
7777 header rewriting and C source file generation. It should be much better
7778 than the old method: it now uses a modified version of Ulf's parser to
7779 read the ANSI prototypes in all header files (thus the old K&R definitions
7780 aren't needed for error creation any more) and do a better job of
7781 translating function codes into names. The old 'ASN1 error code imbedded
7782 in a comment' is no longer necessary and it doesn't use .err files which
7783 have now been deleted. Also the error code call doesn't have to appear all
7784 on one line (which resulted in some large lines...).
7787 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7790 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7791 0 (which usually indicates a closed connection), but continue reading.
7794 *) Fix some race conditions.
7797 *) Add support for CRL distribution points extension. Add Certificate
7798 Policies and CRL distribution points documentation.
7801 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7804 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7805 8 of keying material. Merlin has also confirmed interop with this fix
7806 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7807 [Merlin Hughes <merlin@baltimore.ie>]
7809 *) Fix lots of warnings.
7810 [Richard Levitte <levitte@stacken.kth.se>]
7812 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7813 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7814 [Richard Levitte <levitte@stacken.kth.se>]
7816 *) Fix problems with sizeof(long) == 8.
7817 [Andy Polyakov <appro@fy.chalmers.se>]
7819 *) Change functions to ANSI C.
7822 *) Fix typos in error codes.
7823 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7825 *) Remove defunct assembler files from Configure.
7828 *) SPARC v8 assembler BIGNUM implementation.
7829 [Andy Polyakov <appro@fy.chalmers.se>]
7831 *) Support for Certificate Policies extension: both print and set.
7832 Various additions to support the r2i method this uses.
7835 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7836 return a const string when you are expecting an allocated buffer.
7839 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7840 types DirectoryString and DisplayText.
7843 *) Add code to allow r2i extensions to access the configuration database,
7844 add an LHASH database driver and add several ctx helper functions.
7847 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7848 fail when they extended the size of a BIGNUM.
7851 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7852 support typesafe stack.
7855 *) Fix typo in SSL_[gs]et_options().
7856 [Nils Frostberg <nils@medcom.se>]
7858 *) Delete various functions and files that belonged to the (now obsolete)
7859 old X509V3 handling code.
7862 *) New Configure option "rsaref".
7865 *) Don't auto-generate pem.h.
7868 *) Introduce type-safe ASN.1 SETs.
7871 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7872 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7874 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7875 that links with OpenSSL (well at least cause lots of warnings), but fear
7876 not: the conversion is trivial, and it eliminates loads of evil casts. A
7877 few STACKed things have been converted already. Feel free to convert more.
7878 In the fullness of time, I'll do away with the STACK type altogether.
7881 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7882 specified in <certfile> by updating the entry in the index.txt file.
7883 This way one no longer has to edit the index.txt file manually for
7884 revoking a certificate. The -revoke option does the gory details now.
7885 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7887 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7888 `-text' option at all and this way the `-noout -text' combination was
7889 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7890 [Ralf S. Engelschall]
7892 *) Make sure a corresponding plain text error message exists for the
7893 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7894 verify callback function determined that a certificate was revoked.
7895 [Ralf S. Engelschall]
7897 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7898 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7899 all available cipers including rc5, which was forgotten until now.
7900 In order to let the testing shell script know which algorithms
7901 are available, a new (up to now undocumented) command
7902 "openssl list-cipher-commands" is used.
7905 *) Bugfix: s_client occasionally would sleep in select() when
7906 it should have checked SSL_pending() first.
7909 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7910 the raw DSA values prior to ASN.1 encoding.
7913 *) Tweaks to Configure
7914 [Niels Poppe <niels@netbox.org>]
7916 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7920 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7923 *) New config option to avoid instructions that are illegal on the 80386.
7924 The default code is faster, but requires at least a 486.
7927 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7928 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7929 same as SSL2_VERSION anyway.
7932 *) New "-showcerts" option for s_client.
7935 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7936 application. Various cleanups and fixes.
7939 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7940 modify error routines to work internally. Add error codes and PBE init
7941 to library startup routines.
7944 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7945 packing functions to asn1 and evp. Changed function names and error
7946 codes along the way.
7949 *) PKCS12 integration: and so it begins... First of several patches to
7950 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7951 objects to objects.h
7954 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7955 and display support for Thawte strong extranet extension.
7958 *) Add LinuxPPC support.
7959 [Jeff Dubrule <igor@pobox.org>]
7961 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7962 bn_div_words in alpha.s.
7963 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7965 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7966 OAEP isn't supported when OpenSSL is built with RSAref.
7967 [Ulf Moeller <ulf@fitug.de>]
7969 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7970 so they no longer are missing under -DNOPROTO.
7971 [Soren S. Jorvang <soren@t.dk>]
7974 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7976 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7977 doesn't work when the session is reused. Coming soon!
7980 *) Fix a security hole, that allows sessions to be reused in the wrong
7981 context thus bypassing client cert protection! All software that uses
7982 client certs and session caches in multiple contexts NEEDS PATCHING to
7983 allow session reuse! A fuller solution is in the works.
7984 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7986 *) Some more source tree cleanups (removed obsolete files
7987 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7988 permission on "config" script to be executable) and a fix for the INSTALL
7990 [Ulf Moeller <ulf@fitug.de>]
7992 *) Remove some legacy and erroneous uses of malloc, free instead of
7994 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7996 *) Make rsa_oaep_test return non-zero on error.
7997 [Ulf Moeller <ulf@fitug.de>]
7999 *) Add support for native Solaris shared libraries. Configure
8000 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8001 if someone would make that last step automatic.
8002 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8004 *) ctx_size was not built with the right compiler during "make links". Fixed.
8007 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8008 except NULL ciphers". This means the default cipher list will no longer
8009 enable NULL ciphers. They need to be specifically enabled e.g. with
8010 the string "DEFAULT:eNULL".
8013 *) Fix to RSA private encryption routines: if p < q then it would
8014 occasionally produce an invalid result. This will only happen with
8015 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8018 *) Be less restrictive and allow also `perl util/perlpath.pl
8019 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8020 because this way one can also use an interpreter named `perl5' (which is
8021 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8022 installed as `perl').
8023 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8025 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8026 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8028 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8029 advapi32.lib to Win32 build and change the pem test comparision
8030 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8031 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8032 and crypto/des/ede_cbcm_enc.c.
8035 *) DES quad checksum was broken on big-endian architectures. Fixed.
8038 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8039 Win32 test batch file so it (might) work again. The Win32 test batch file
8040 is horrible: I feel ill....
8043 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8044 in e_os.h. Audit of header files to check ANSI and non ANSI
8045 sections: 10 functions were absent from non ANSI section and not exported
8046 from Windows DLLs. Fixed up libeay.num for new functions.
8049 *) Make `openssl version' output lines consistent.
8050 [Ralf S. Engelschall]
8052 *) Fix Win32 symbol export lists for BIO functions: Added
8053 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8054 to ms/libeay{16,32}.def.
8055 [Ralf S. Engelschall]
8057 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8058 fine under Unix and passes some trivial tests I've now added. But the
8059 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8060 added to make sure no one expects that this stuff really works in the
8061 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8062 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8064 [Ralf S. Engelschall]
8066 *) Fix the generation of two part addresses in perl.
8067 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8069 *) Add config entry for Linux on MIPS.
8070 [John Tobey <jtobey@channel1.com>]
8072 *) Make links whenever Configure is run, unless we are on Windoze.
8075 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8076 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8080 *) Add a useful kludge to allow package maintainers to specify compiler and
8081 other platforms details on the command line without having to patch the
8082 Configure script everytime: One now can use ``perl Configure
8083 <id>:<details>'', i.e. platform ids are allowed to have details appended
8084 to them (seperated by colons). This is treated as there would be a static
8085 pre-configured entry in Configure's %table under key <id> with value
8086 <details> and ``perl Configure <id>'' is called. So, when you want to
8087 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8088 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8089 now, which overrides the FreeBSD-elf entry on-the-fly.
8090 [Ralf S. Engelschall]
8092 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8095 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8096 on the `perl Configure ...' command line. This way one can compile
8097 OpenSSL libraries with Position Independent Code (PIC) which is needed
8098 for linking it into DSOs.
8099 [Ralf S. Engelschall]
8101 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8105 *) Cleaned up the LICENSE document: The official contact for any license
8106 questions now is the OpenSSL core team under openssl-core@openssl.org.
8107 And add a paragraph about the dual-license situation to make sure people
8108 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8109 to the OpenSSL toolkit.
8110 [Ralf S. Engelschall]
8112 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8113 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8114 Additonally cleaned up the `make links' target: Remove unnecessary
8115 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8116 to speed processing and no longer clutter the display with confusing
8117 stuff. Instead only the actually done links are displayed.
8118 [Ralf S. Engelschall]
8120 *) Permit null encryption ciphersuites, used for authentication only. It used
8121 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8122 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8126 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8127 signed attributes when verifying signatures (this would break them),
8128 the detached data encoding was wrong and public keys obtained using
8129 X509_get_pubkey() weren't freed.
8132 *) Add text documentation for the BUFFER functions. Also added a work around
8133 to a Win95 console bug. This was triggered by the password read stuff: the
8134 last character typed gets carried over to the next fread(). If you were
8135 generating a new cert request using 'req' for example then the last
8136 character of the passphrase would be CR which would then enter the first
8140 *) Added the new `Includes OpenSSL Cryptography Software' button as
8141 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8142 button and can be used by applications based on OpenSSL to show the
8143 relationship to the OpenSSL project.
8144 [Ralf S. Engelschall]
8146 *) Remove confusing variables in function signatures in files
8147 ssl/ssl_lib.c and ssl/ssl.h.
8148 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8150 *) Don't install bss_file.c under PREFIX/include/
8151 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8153 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8154 functions that return function pointers and has support for NT specific
8155 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8156 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8157 unsigned to signed types: this was killing the Win32 compile.
8160 *) Add new certificate file to stack functions,
8161 SSL_add_dir_cert_subjects_to_stack() and
8162 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8163 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8164 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8165 This means that Apache-SSL and similar packages don't have to mess around
8166 to add as many CAs as they want to the preferred list.
8169 *) Experiment with doxygen documentation. Currently only partially applied to
8171 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8172 openssl.doxy as the configuration file.
8175 *) Get rid of remaining C++-style comments which strict C compilers hate.
8176 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8178 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8179 compiled in by default: it has problems with large keys.
8182 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8183 DH private keys and/or callback functions which directly correspond to
8184 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8185 is needed for applications which have to configure certificates on a
8186 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8188 For the RSA certificate situation is makes no difference, but
8189 for the DSA certificate situation this fixes the "no shared cipher"
8190 problem where the OpenSSL cipher selection procedure failed because the
8191 temporary keys were not overtaken from the context and the API provided
8192 no way to reconfigure them.
8193 The new functions now let applications reconfigure the stuff and they
8194 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8195 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8196 non-public-API function ssl_cert_instantiate() is used as a helper
8197 function and also to reduce code redundancy inside ssl_rsa.c.
8198 [Ralf S. Engelschall]
8200 *) Move s_server -dcert and -dkey options out of the undocumented feature
8201 area because they are useful for the DSA situation and should be
8202 recognized by the users.
8203 [Ralf S. Engelschall]
8205 *) Fix the cipher decision scheme for export ciphers: the export bits are
8206 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8207 SSL_EXP_MASK. So, the original variable has to be used instead of the
8208 already masked variable.
8209 [Richard Levitte <levitte@stacken.kth.se>]
8211 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8212 [Richard Levitte <levitte@stacken.kth.se>]
8214 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8215 from `int' to `unsigned int' because it's a length and initialized by
8216 EVP_DigestFinal() which expects an `unsigned int *'.
8217 [Richard Levitte <levitte@stacken.kth.se>]
8219 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8220 script. Instead use the usual Shell->Perl transition trick.
8221 [Ralf S. Engelschall]
8223 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8224 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8225 -noout -modulus' as it's already the case for `openssl rsa -noout
8226 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8227 currently the public key is printed (a decision which was already done by
8228 `openssl dsa -modulus' in the past) which serves a similar purpose.
8229 Additionally the NO_RSA no longer completely removes the whole -modulus
8230 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8232 [Ralf S. Engelschall]
8234 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8235 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8236 [Arne Ansper <arne@ats.cyber.ee>]
8238 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8239 to be added. Now both 'req' and 'ca' can use new objects defined in the
8243 *) Add cool BIO that does syslog (or event log on NT).
8244 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8246 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8247 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8248 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8249 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8252 *) Add preliminary config info for new extension code.
8255 *) Make RSA_NO_PADDING really use no padding.
8256 [Ulf Moeller <ulf@fitug.de>]
8258 *) Generate errors when private/public key check is done.
8261 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8262 for some CRL extensions and new objects added.
8265 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8266 key usage extension and fuller support for authority key id.
8269 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8270 padding method for RSA, which is recommended for new applications in PKCS
8271 #1 v2.0 (RFC 2437, October 1998).
8272 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8273 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8274 against Bleichbacher's attack on RSA.
8275 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8278 *) Updates to the new SSL compression code
8279 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8281 *) Fix so that the version number in the master secret, when passed
8282 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8283 (because the server will not accept higher), that the version number
8284 is 0x03,0x01, not 0x03,0x00
8285 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8287 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8288 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8289 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8292 *) Support for RAW extensions where an arbitrary extension can be
8293 created by including its DER encoding. See apps/openssl.cnf for
8297 *) Make sure latest Perl versions don't interpret some generated C array
8298 code as Perl array code in the crypto/err/err_genc.pl script.
8299 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8301 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8302 not many people have the assembler. Various Win32 compilation fixes and
8303 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8307 *) Modify configure script 'Configure' to automatically create crypto/date.h
8308 file under Win32 and also build pem.h from pem.org. New script
8309 util/mkfiles.pl to create the MINFO file on environments that can't do a
8310 'make files': perl util/mkfiles.pl >MINFO should work.
8313 *) Major rework of DES function declarations, in the pursuit of correctness
8314 and purity. As a result, many evil casts evaporated, and some weirdness,
8315 too. You may find this causes warnings in your code. Zapping your evil
8316 casts will probably fix them. Mostly.
8319 *) Fix for a typo in asn1.h. Bug fix to object creation script
8320 obj_dat.pl. It considered a zero in an object definition to mean
8321 "end of object": none of the objects in objects.h have any zeros
8322 so it wasn't spotted.
8323 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8325 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8326 Masking (CBCM). In the absence of test vectors, the best I have been able
8327 to do is check that the decrypt undoes the encrypt, so far. Send me test
8328 vectors if you have them.
8331 *) Correct calculation of key length for export ciphers (too much space was
8332 allocated for null ciphers). This has not been tested!
8335 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8336 message is now correct (it understands "crypto" and "ssl" on its
8337 command line). There is also now an "update" option. This will update
8338 the util/ssleay.num and util/libeay.num files with any new functions.
8340 perl util/mkdef.pl crypto ssl update
8341 it will update them.
8344 *) Overhauled the Perl interface (perl/*):
8345 - ported BN stuff to OpenSSL's different BN library
8346 - made the perl/ source tree CVS-aware
8347 - renamed the package from SSLeay to OpenSSL (the files still contain
8348 their history because I've copied them in the repository)
8349 - removed obsolete files (the test scripts will be replaced
8350 by better Test::Harness variants in the future)
8351 [Ralf S. Engelschall]
8353 *) First cut for a very conservative source tree cleanup:
8354 1. merge various obsolete readme texts into doc/ssleay.txt
8355 where we collect the old documents and readme texts.
8356 2. remove the first part of files where I'm already sure that we no
8357 longer need them because of three reasons: either they are just temporary
8358 files which were left by Eric or they are preserved original files where
8359 I've verified that the diff is also available in the CVS via "cvs diff
8360 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8361 the crypto/md/ stuff).
8362 [Ralf S. Engelschall]
8364 *) More extension code. Incomplete support for subject and issuer alt
8365 name, issuer and authority key id. Change the i2v function parameters
8366 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8367 what that's for :-) Fix to ASN1 macro which messed up
8368 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8371 *) Preliminary support for ENUMERATED type. This is largely copied from the
8375 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8376 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8378 *) Make sure `make rehash' target really finds the `openssl' program.
8379 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8381 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8382 like to hear about it if this slows down other processors.
8385 *) Add CygWin32 platform information to Configure script.
8386 [Alan Batie <batie@aahz.jf.intel.com>]
8388 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8389 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8391 *) New program nseq to manipulate netscape certificate sequences
8394 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8398 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8399 but the BN code had some problems that would cause failures when
8400 doing certificate verification and some other functions.
8401 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8403 *) Add ASN1 and PEM code to support netscape certificate sequences.
8406 *) Add ASN1 and PEM code to support netscape certificate sequences.
8409 *) Add several PKIX and private extended key usage OIDs.
8412 *) Modify the 'ca' program to handle the new extension code. Modify
8413 openssl.cnf for new extension format, add comments.
8416 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8417 and add a sample to openssl.cnf so req -x509 now adds appropriate
8421 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8422 error code, add initial support to X509_print() and x509 application.
8425 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8426 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8427 stuff is currently isolated and isn't even compiled yet.
8430 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8431 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8432 Removed the versions check from X509 routines when loading extensions:
8433 this allows certain broken certificates that don't set the version
8434 properly to be processed.
8437 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8438 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8439 can still be regenerated with "make depend".
8442 *) Spelling mistake in C version of CAST-128.
8443 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8445 *) Changes to the error generation code. The perl script err-code.pl
8446 now reads in the old error codes and retains the old numbers, only
8447 adding new ones if necessary. It also only changes the .err files if new
8448 codes are added. The makefiles have been modified to only insert errors
8449 when needed (to avoid needlessly modifying header files). This is done
8450 by only inserting errors if the .err file is newer than the auto generated
8451 C file. To rebuild all the error codes from scratch (the old behaviour)
8452 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8453 or delete all the .err files.
8456 *) CAST-128 was incorrectly implemented for short keys. The C version has
8457 been fixed, but is untested. The assembler versions are also fixed, but
8458 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8459 to regenerate it if needed.
8460 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8461 Hagino <itojun@kame.net>]
8463 *) File was opened incorrectly in randfile.c.
8464 [Ulf Möller <ulf@fitug.de>]
8466 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8467 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8468 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8469 al: it's just almost always a UTCTime. Note this patch adds new error
8470 codes so do a "make errors" if there are problems.
8473 *) Correct Linux 1 recognition in config.
8474 [Ulf Möller <ulf@fitug.de>]
8476 *) Remove pointless MD5 hash when using DSA keys in ca.
8477 [Anonymous <nobody@replay.com>]
8479 *) Generate an error if given an empty string as a cert directory. Also
8480 generate an error if handed NULL (previously returned 0 to indicate an
8481 error, but didn't set one).
8482 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8484 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8487 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8488 parameters. This was causing a warning which killed off the Win32 compile.
8491 *) Remove C++ style comments from crypto/bn/bn_local.h.
8492 [Neil Costigan <neil.costigan@celocom.com>]
8494 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8495 based on a text string, looking up short and long names and finally
8496 "dot" format. The "dot" format stuff didn't work. Added new function
8497 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8498 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8499 OID is not part of the table.
8502 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8503 X509_LOOKUP_by_alias().
8506 *) Sort openssl functions by name.
8509 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8510 encryption from sample DSA keys (in case anyone is interested the password
8514 *) Make _all_ *_free functions accept a NULL pointer.
8515 [Frans Heymans <fheymans@isaserver.be>]
8517 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8519 [Anonymous <nobody@replay.com>]
8521 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8522 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8524 *) Don't blow it for numeric -newkey arguments to apps/req.
8525 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8527 *) Temp key "for export" tests were wrong in s3_srvr.c.
8528 [Anonymous <nobody@replay.com>]
8530 *) Add prototype for temp key callback functions
8531 SSL_CTX_set_tmp_{rsa,dh}_callback().
8534 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8535 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8538 *) X509_name_add_entry() freed the wrong thing after an error.
8539 [Arne Ansper <arne@ats.cyber.ee>]
8541 *) rsa_eay.c would attempt to free a NULL context.
8542 [Arne Ansper <arne@ats.cyber.ee>]
8544 *) BIO_s_socket() had a broken should_retry() on Windoze.
8545 [Arne Ansper <arne@ats.cyber.ee>]
8547 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8548 [Arne Ansper <arne@ats.cyber.ee>]
8550 *) Make sure the already existing X509_STORE->depth variable is initialized
8551 in X509_STORE_new(), but document the fact that this variable is still
8552 unused in the certificate verification process.
8553 [Ralf S. Engelschall]
8555 *) Fix the various library and apps files to free up pkeys obtained from
8556 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8559 *) Fix reference counting in X509_PUBKEY_get(). This makes
8560 demos/maurice/example2.c work, amongst others, probably.
8561 [Steve Henson and Ben Laurie]
8563 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8564 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8565 are no longer created. This way we have a single and consistent command
8566 line interface `openssl <command>', similar to `cvs <command>'.
8567 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8569 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8570 BIT STRING wrapper always have zero unused bits.
8573 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8576 *) Make the top-level INSTALL documentation easier to understand.
8579 *) Makefiles updated to exit if an error occurs in a sub-directory
8580 make (including if user presses ^C) [Paul Sutton]
8582 *) Make Montgomery context stuff explicit in RSA data structure.
8585 *) Fix build order of pem and err to allow for generated pem.h.
8588 *) Fix renumbering bug in X509_NAME_delete_entry().
8591 *) Enhanced the err-ins.pl script so it makes the error library number
8592 global and can add a library name. This is needed for external ASN1 and
8593 other error libraries.
8596 *) Fixed sk_insert which never worked properly.
8599 *) Fix ASN1 macros so they can handle indefinite length construted
8600 EXPLICIT tags. Some non standard certificates use these: they can now
8604 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8605 into a single doc/ssleay.txt bundle. This way the information is still
8606 preserved but no longer messes up this directory. Now it's new room for
8607 the new set of documenation files.
8608 [Ralf S. Engelschall]
8610 *) SETs were incorrectly DER encoded. This was a major pain, because they
8611 shared code with SEQUENCEs, which aren't coded the same. This means that
8612 almost everything to do with SETs or SEQUENCEs has either changed name or
8613 number of arguments.
8614 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8616 *) Fix test data to work with the above.
8619 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8620 was already fixed by Eric for 0.9.1 it seems.
8621 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8623 *) Autodetect FreeBSD3.
8626 *) Fix various bugs in Configure. This affects the following platforms:
8630 unixware-2.0-pentium
8634 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8635 before they are needed.
8638 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8642 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8644 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8645 changed SSLeay to OpenSSL in version strings.
8646 [Ralf S. Engelschall]
8648 *) Some fixups to the top-level documents.
8651 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8652 because the symlink to include/ was missing.
8653 [Ralf S. Engelschall]
8655 *) Incorporated the popular no-RSA/DSA-only patches
8656 which allow to compile a RSA-free SSLeay.
8657 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8659 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8660 when "ssleay" is still not found.
8661 [Ralf S. Engelschall]
8663 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8664 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8666 *) Updated the README file.
8667 [Ralf S. Engelschall]
8669 *) Added various .cvsignore files in the CVS repository subdirs
8670 to make a "cvs update" really silent.
8671 [Ralf S. Engelschall]
8673 *) Recompiled the error-definition header files and added
8674 missing symbols to the Win32 linker tables.
8675 [Ralf S. Engelschall]
8677 *) Cleaned up the top-level documents;
8678 o new files: CHANGES and LICENSE
8679 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8680 o merged COPYRIGHT into LICENSE
8681 o removed obsolete TODO file
8682 o renamed MICROSOFT to INSTALL.W32
8683 [Ralf S. Engelschall]
8685 *) Removed dummy files from the 0.9.1b source tree:
8686 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8687 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8688 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8689 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8690 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8691 [Ralf S. Engelschall]
8693 *) Added various platform portability fixes.
8696 *) The Genesis of the OpenSSL rpject:
8697 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8698 Young and Tim J. Hudson created while they were working for C2Net until
8700 [The OpenSSL Project]
8703 Changes between 0.9.0b and 0.9.1b [not released]
8705 *) Updated a few CA certificates under certs/
8708 *) Changed some BIGNUM api stuff.
8711 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8712 DGUX x86, Linux Alpha, etc.
8715 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8716 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8720 *) Add -strparse option to asn1pars program which parses nested
8722 [Dr Stephen Henson <shenson@bigfoot.com>]
8724 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8727 *) DSA fix for "ca" program.
8730 *) Added "-genkey" option to "dsaparam" program.
8733 *) Added RIPE MD160 (rmd160) message digest.
8736 *) Added -a (all) option to "ssleay version" command.
8739 *) Added PLATFORM define which is the id given to Configure.
8742 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8745 *) Extended the ASN.1 parser routines.
8748 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8751 *) Added a BN_CTX to the BN library.
8754 *) Fixed the weak key values in DES library
8757 *) Changed API in EVP library for cipher aliases.
8760 *) Added support for RC2/64bit cipher.
8763 *) Converted the lhash library to the crypto/mem.c functions.
8766 *) Added more recognized ASN.1 object ids.
8769 *) Added more RSA padding checks for SSL/TLS.
8772 *) Added BIO proxy/filter functionality.
8775 *) Added extra_certs to SSL_CTX which can be used
8776 send extra CA certificates to the client in the CA cert chain sending
8777 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8780 *) Now Fortezza is denied in the authentication phase because
8781 this is key exchange mechanism is not supported by SSLeay at all.
8784 *) Additional PKCS1 checks.
8787 *) Support the string "TLSv1" for all TLS v1 ciphers.
8790 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8791 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8794 *) Fixed a few memory leaks.
8797 *) Fixed various code and comment typos.
8800 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8801 bytes sent in the client random.
8802 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob